Answers
The graph shows an increasing trend in glacier ice loss with advancing years. This could be hypothesized to be as a result of increased global temperatures that are melting the ice. Melting of the ice also causes an increase in the ocean levels. This phenomenon is referred to as global warming.
The increasing trend in glacier ice loss is likely due to rising global temperatures, causing ice melt and contributing to global warming.
The graph displaying a continuous increase in glacier ice loss over the years strongly suggests a connection to global warming. Here's a breakdown of the correlation:
Global Temperature Rise: Increasing global temperatures, primarily driven by human activities such as the burning of fossil fuels and deforestation, result in higher average temperatures worldwide. This warming effect leads to elevated temperatures in polar and glacier regions, causing ice to melt at an accelerated rate.
Glacier Ice Loss: As temperatures rise, glaciers and ice sheets experience more significant melt rates. This contributes to the observed trend of glacier ice loss over the years. This ice melt affects glaciers and ice sheets in Greenland and Antarctica.
Sea Level Rise: The melted ice from glaciers and ice sheets flows into the oceans, causing sea levels to rise. This phenomenon is one of the key consequences of global warming, known as sea-level rise. Rising sea levels pose significant risks to coastal communities, ecosystems, and infrastructure.
Global Warming: The overall process, where increased global temperatures lead to ice melt and rising sea levels, is encompassed within the broader issue of global warming. Global warming results from the enhanced greenhouse effect, primarily driven by increased greenhouse gas emissions, which trap heat in the Earth's atmosphere.
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Related Questions
write a short paragraph explaining why biological diversity is important for the survival of a species.
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is the variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species, and of ecosystems.
Biodiversity forms the foundation of the vast array of ecosystem services that critically contribute to human well-being.
Biodiversity is important in human-managed as well as natural ecosystems.
Decisions humans make that influence biodiversity affect the well-being of themselves and others.
Biodiversity is the foundation of ecosystem services to which human well-being is intimately linked. No feature of Earth is more complex, dynamic, and varied than the layer of living organisms that occupy its surfaces and its seas, and no feature is experiencing more dramatic change at the hands of humans than this extraordinary, singularly unique feature of Earth. This layer of living organisms—the biosphere—through the collective metabolic activities of its innumerable plants, animals, and microbes physically and chemically unites the atmosphere, geosphere, and hydrosphere into one environmental system within which millions of species, including humans, have thrived. Breathable air, potable water, fertile soils, productive lands, bountiful seas, the equitable climate of Earth’s recent history, and other ecosystem services (see Box 1.1 and Key Question 2) are manifestations of the workings of life. It follows that large-scale human influences over this biota have tremendous impacts on human well-being. It also follows that the nature of these impacts, good or bad, is within the power of humans to influence (CF2).
Defining Biodiversity
Biodiversity is defined as “the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems.” The importance of this definition is that it draws attention to the many dimensions of biodiversity. It explicitly recognizes that every biota can be characterized by its taxonomic, ecological, and genetic diversity and that the way these dimensions of diversity vary over space and time is a key feature of biodiversity. Thus only a multidimensional assessment of biodiversity can provide insights into the relationship between changes in biodiversity and changes in ecosystem functioning and ecosystem services (CF2).
Biodiversity includes all ecosystems—managed or unmanaged. Sometimes biodiversity is presumed to be a relevant feature of only unmanaged ecosystems, such as wildlands, nature preserves, or national parks. This is incorrect. Managed systems—be they plantations, farms, croplands, aquaculture sites, rangelands, or even urban parks and urban ecosystems—have their own biodiversity. Given that cultivated systems alone now account for more than 24% of Earth’s terrestrial surface, it is critical that any decision concerning biodiversity or ecosystem services address the maintenance of biodiversity in these largely anthropogenic systems (C26.1).
Measuring Biodiversity: Species Richness and Indicators
In spite of many tools and data sources, biodiversity remains difficult to quantify precisely. But precise answers are seldom needed to devise an effective understanding of where biodiversity is, how it is changing over space and time, the drivers responsible for such change, the consequences of such change for ecosystem services and human well-being, and the response options available. Ideally, to assess the conditions and trends of biodiversity either globally or sub-globally, it is necessary to measure the abundance of all organisms over space and time, using taxonomy (such as the number of species), functional traits (for example, the ecological type such as nitrogen-fixing plants like legumes versus non-nitrogen-fixing plants), and the interactions among species that affect their dynamics and function (predation, parasitism, competition, and facilitation such as pollination, for instance, and how strongly such interactions affect ecosystems). Even more important would be to estimate turnover of biodiversity, not just point estimates in space or time. Currently, it is not possible to do this with much accuracy because the data are lacking. Even for the taxonomic component of biodiversity, where information is the best, considerable uncertainty remains about the true extent and changes in taxonomic diversity (C4).
Which statements are true for chloroplasts? Select the three that apply.
a. They are the sites of reactions that convert chemical energy from food molecules to ATP.
b. Their inner membrane has infoldings called cristae.
c. Their matrix contains enzymes that function in cellular respiration.
d. They have membranous sacs called thylakoids that are surrounded by a fluid called stroma.
e. They contain the green pigment chlorophyll.
f. They are the sites of reactions that convert solar energy into chemical energy.
Answers
The answer are d, e, and f
Answer:
The correct answers are options d, e and f.
Explanation:
Chloroplasts refer to a double-membrane bound organelles, which exhibits an internal membrane system known as the thylakoids. The thylakoids are found in a fluid known as stroma. The thylakoids are the location for undergoing light reaction and possess chlorophyll pigment.
The captivation of solar energy takes place by the green color pigment chlorophyll, which is eventually used to generate NADPH and ATP while undergoing light reaction. Stroma is the location for dark reactions, which produced glucose from carbon dioxide.
How is the energy of a nuclear reactor converted to electricity? The nuclear reactions produce electrical energy directly. Heat powers an electrical generator directly. Steam converts mechanical energy to electricity. Reactor products charge huge batteries.
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Nuclear power plants use the nuclear fission reaction to release energy and generate electricity through energy conversion. Take the pressurized water reactor nuclear power plant as an example to illustrate its working principle.
In the pressurized water reactor, a large amount of heat is generated by the self-sustaining chain fission reaction of the nuclear fuel nucleus. The coolant (also called the heat carrier) brings the heat in the reactor to the steam generator and transfers the heat to the working medium, water. The main circulation pump then delivers the coolant back to the reactor for recycling, thereby forming a circuit called the first circuit. This process is also the energy conversion process of nuclear fission energy converted into thermal energy.
The working medium on the secondary side of the U-tube outside the steam generator is vaporized by heat to form steam. The steam enters the steam turbine to expand work, and converts the heat energy released by the steam enthalpy into the mechanical energy of the rotor of the steam turbine. This process is called thermal energy conversion to mechanical energy. The energy conversion process. The steam that has done work is condensed into condensed water in the condenser and returned to the steam generator to form another circulation loop called the second loop. This process is called the energy conversion process of converting thermal energy into mechanical energy. The rotating rotor of the steam turbine directly drives the rotor of the generator to rotate, so that the generator emits electric energy, which is an energy conversion process that converts mechanical energy into electrical energy.
Answer:
Steam converts mechanical energy to electricity.
The individual with genotype AaBbCCDdEE can make many kinds of gametes. Which of the following is the major reason?
A) segregation of maternal and paternal alleles
B) recurrent mutations forming new alleles
C) crossing over during prophase I
D) different possible alignments of chromosomes
E) the tendency for dominant alleles to segregate together
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The correct is answer is option D
Different possible alignments of chromosomes
In totality there are 5 traits with two allele each
Aa, Bb, CC, Dd, EE
The gametes formed will have allele from each gene and thus in totality each gamete will have 5 allele.
Thus different gamete can be produced such as ABCDE, ABcDe, AbCDE, AbcDe and many more.
The major reason why the individual with genotype AaBbCCDdEE can make many kinds of gametes is different possible alignments of chromosomes during meiosis. Hence the correct option is D.
The genotype AaBbCCDdEE indicates that the individual is heterozygous at multiple gene loci (Aa, Bb, Cc, Dd, EE). During meiosis, the homologous chromosomes (one from each parent) pair up and align randomly along the metaphase plate during Metaphase I.
This random alignment is known as "independent assortment." The independent assortment of chromosomes during meiosis leads to various combinations of maternal and paternal alleles being present in the gametes, resulting in the production of a wide variety of gametes with different genetic compositions.
Hence the correct option is D.
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Mammals share which of the following extraembryonic membranes with reptiles and birds?
A) chorion.
B) amnion.
C) allantois.
D) A and B.
E) A, B and C.
Answers
E) A,B and C
hope i helped!
Which tool would a scientist uae to view tiny or organism a) computer b) compound microscope c) test tube d) triple beam balance
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A scientist would use a Compund Microscope in order to view tiny organisms or cells. This device increases the magnification in order to make the thing being viewed visible to the naked eye.
This is was a worldwide scientific project that deciphered the DNA code of all the human Chromosomes of the body
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Organisms interact with their environments, exchanging matter and energy. For example, plant chloroplasts convert the energy of sunlight into
A) the energy of motion.
B) carbon dioxide and water.
C) the potential energy of chemical bonds.
D) oxygen.
E) kinetic energy.
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The process of photosynthesis by green plastids absorb light energy coming from the sun and then converted to chemical energy, and then install the carbon dioxide within the green plastids themselves, resulting in the process of sugar glucose and oxygen gas and a few molecules of water, and in what The following is a chemical equation that shows how photosynthesis occurs: [3] CO2 + H2O + Sun light + Chlorophyll H2O + O2 + C6H12O6 The photosynthesis is not limited to the organism itself but extends to the surrounding ecosystem as it absorbs carbon dioxide from the atmosphere to perform this process, K They produce the oxygen gas being released into the atmosphere, which creates a state of balance between these gases in the atmosphere
Final answer:
Plant chloroplasts convert sunlight into the potential energy of chemical bonds during photosynthesis, storing it in sugar molecules for later use. The correct answer is: C) the potential energy of chemical bonds.
Explanation:
Organisms interact with their environments, exchanging matter and energy. Specifically in plants, chloroplasts convert the energy of sunlight into a useable form. The correct answer to the question is C) the potential energy of chemical bonds. This is because, during photosynthesis, light energy is captured and used to energize electrons, which are then stored in the covalent bonds of sugar molecules such as glucose. The energy stored in these chemical bonds is later made available to organisms that consume these plants, providing the energy necessary for life processes like cellular respiration.
Taxol is a drug that stabilizes microtubules and prevents them from depolymerizing. Consequently, cells treated with taxol fail to complete mitosis. What is the last stage of mitosis that taxol-treated cells are likely to complete?
a. Prophase
b. Metaphase
c. Telophase
d. Anaphase
Answers
The correct answer is option B.Taxol targets mitosis by stabilizing microtubules and thus hampers chromosomal segregation during cell division. It prevents the progression past metaphase, thereby inhibiting mitosis before anaphase begins. Therefore, cells treated with Taxol are likely to complete metaphase.
Taxol is a chemotherapeutic drug that targets mitosis, a critical process in cell division. Specifically, Taxol acts by stabilizing the microtubules that make up the mitotic spindle. During mitosis, microtubules have to go through cycles of assembly and disassembly for chromosomes to be properly segregated to daughter cells.
Microtubule stability is crucial during the later phases of mitosis, particularly from anaphase onwards, when the sister chromatids are pulled apart and moved to opposite poles of the cell. As Taxol prevents depolymerization of microtubules, this would most likely stop cells in the metaphase of mitosis, just before entering anaphase. Therefore, the correct answer to which phase Taxol-treated cells can complete is b. Metaphase.
As ATP binds to the myosin head at the beginning of a muscle contraction cycle, the myosin head immediately
A. detaches from actin.
B. initiates binding with actin.
C. tightens its bond to actin.
D. swivels.
Answers
i dunno but i think its b
If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products?
A) 2 atoms of carbon (C)
B) 3 atoms of carbon (C)
C) 6 atoms of carbon (C)
D) 12 atoms of carbon (C)
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It would be D. because I think the element doubles.
Someone help me with this
Answers
Hope that helps:)
Lisa lives in a city that has an average monthly rainfall of 71 millimeters. It has warm summers, and is hottest during July, with an average high temperature of 81°F. The winters are very cold. Lisa’s friend Julia lives in a city with an average monthly precipitation of 270 millimeters. It is warm all year. Julia’s city is in a ? climate, while Lisa’s city is in a ? climate.
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Lisa lives in a city, which is a part of the dry climate types. It is most probably a place where the temperatures in the summers are high, and in winter are very low. The place probably would be far from the sea, due to which the rainfall does not reach this place, and thus having a symbolic amount of annual rainfall. Lisa's most probably would be living in a city has a continental climate.
On the other hand, Lisa's friend Julia lives in a city that has an average monthly rainfall of 270 millimeters, it is warm throughout the year, and thus would be possessing higher humidity. On seeing the information, Julia would be living in a city has a tropical climate.
Why is it incorrect to call interphase a resting phase
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The answer is; Cell at interphase is not really resting. Cells in this stage are preparing for mitosis. The cells in this phase hordes up energy and proteins required for mitosis (grows in size) and begins to replicate the genetic material and organelles. The interphase is divided into G1, S , and G2 stages.
The resting stage is actually G0 stage where the cells do not replicate again.
Interphase, consisting of the G₁, S, and G₂ phases, is not a resting phase as the cell is actively involved in many processes, including DNA replication and preparations for mitosis. The Go phase, however, is where some cells are in a quiescent or resting state.
Explanation:It is incorrect to call interphase a resting phase because, during this stage, the cell is actively involved in multiple important processes that prepare it for cell division. Interphase is made up of the G₁, S, and G₂ phases. During the G₁ phase, the first stage of interphase, the cell is busy accumulating the building blocks of chromosomal DNA and the associated proteins, as well as accumulating sufficient energy reserves to complete the task of replicating each chromosome in the nucleus. The cell then moves to the S phase where DNA replication occurs. Following this is the G₂ phase, during which the cell continues to grow and makes necessary preparations for mitosis.
However, it is important to note the existence of the Go phase, a stage where the cell is in a quiescent (inactive) stage and not actively preparing to divide. Some cells enter Go temporarily due to environmental conditions, while others, like nerve and mature cardiac muscle cells, remain in Go permanently.
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An organism has the genotype "Aa" for a particular trait. As a result of segregation during meiosis, what alleles will each gamete contain? two copies of "a" one "A" and one "a" two copies of "A" one "A" or one "a"
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when an organism has Aa genotype for a particular trait, during segregation each gamete should contains one A and one a allele for proper segregation.
An organism with the genotype "Aa" will produce gametes with either one "A" or one "a" allele due to the segregation of alleles during meiosis, following the Law of Segregation.
Explanation:An organism with the genotype "Aa" for a particular trait will produce gametes where each gamete contains either one "A" or one "a" allele. During meiosis, the process that leads to the formation of gametes, the alleles segregate so that each gamete receives only one allele for each gene. This is in accordance with Mendel's Law of Segregation, which states that the two alleles for each characteristic segregate during gamete production. Therefore, it is not possible for a gamete to receive two copies of "A" or two copies of "a" from this organism; instead, each gamete will randomly receive one allele or the other, resulting in a 50/50 chance of obtaining either the "A" or the "a" allele.
The pop-up question at the end of this level asks whether an animal or a plant is more closely related to a fungus.
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Answer:
Although apparently it may look that fungi are more related to plants than the animals but the fact is quite opposite.
Explanation:
The molecular phylogenetic analysis is an excellent tool to find out the correct ancestor and evolutionary history of organisms. The molecular phylogenetic studies have depicted that fungi are more related to animals than to the plants. Please see attached figure.
Here are some of the many similarities between animals and fungi:
Both are eukaryotes that means they have proper organelles bonded by proper membranes.Both need energy from the sun for their survival but are unable to use that sunlight for the production of food (heterotrophs).Both do not contain photosynthetic pigments called chlorophylls in their cells.Hope it help!
Fungi are more closely related to animals than plants. They are heterotrophic, use complex organic compounds for energy, and share traits with animals. Fungi play a crucial role in ecosystems by breaking down organic materials.
Explanation:Fungi, once considered plant-like organisms, are more closely related to animals than plants. Fungi are heterotrophic and use complex organic compounds as sources of energy and carbon. They also share traits with animals such as having chitin in their cell walls, producing pigments like melanin, and storing carbohydrates as glycogen. Fungi play a vital role in ecosystems by acting as decomposers and breaking down organic materials into simple molecules.
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During which part of the cell cycle is the duplicated genetic material within the nuclear us of a parent cell Seperator to create two daughter cells
Answers
Mitosis
Mitosis is the part of the cell cycle in which the duplicated genetic material (chromosomes) within the parent’s cell nucleus is separated to produce two daughter cells that are genetically identical to the parent. Mitosis is important to life because it is involved in the production of new cells for growth and to replace damaged cells. Mitosis occurs in five stages which are; interphase, prophase, metaphase, anaphase and telophase (cytokinesis).
Answer: Mitosis
Explanation:
Darwin made many observations of the plants and animals of the Galápagos Islands, and he applied these observations to develop his ideas about evolution. Think about the species you read about in Hawaii. Do the Hawaiian honeycreepers provide evidence to support Darwin's theory of evolution by natural selection? Why or why not?
Answers
SAMPLE Answer:
Yes because years and years later there are now descendants of the original animals that have evolved and changed to best suit the environment they're living in.
Explanation:
(keep in mind I have no clue if this is right or not, but i used this for my answer on the assignment)
Hawaiian honeycreepers provide STRONG EVIDENCE to support Darwin's theory of evolution by natural selection because different species are adapted to fit different environments.
Hawaiian honeycreepers are endemic species that inhabit the Hawaiian archipelago. In a similar manner to Darwin's finches from the Galapagos archipelago, Hawaiian honeycreeper' species evolved the shape of their beaks to more efficiently eat the nectar of different types of flowers found on each island.The shape of the beak of the Hawaiian honeycreepers fit to the flowers so different bird species can draw nectar more efficiently according to the flowers found on each island.Hawaiian honeycreepers represent an excellent example of evolution by natural selection, where different species inhabiting different islands changed (evolved) to adapt to particular environmental conditions.In conclusion, Hawaiian honeycreepers provide STRONG EVIDENCE to support Darwin's theory of evolution by natural selection because different species are adapted to fit different environments.
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The cell membrane plays an essential role in the life of a cell how does the cell membrane help maintain the health of cells?
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Read the information for transcription using this link, then answer the questions provided. Explain the process of transcription.
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the correct answer is-
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (mRNA) by the enzyme RNA polymerase. Both RNA and DNA are nucleic acids, which use base pairs of nucleotides as a complementary language. The two can be converted back and forth from DNA to RNA by the action of the correct enzymes.
Which of the following describe the role a biochemical pump plays in active transport?
A, It helps move materials across the membrane against the concentration gradient.
B, It helps large molecules that do not normally cross the cell membrane to enter or exit cells.
C, It helps a cell accumulate a relatively high concentration of a molecule.
D, It helps move water more quickly across the membrane.
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Molecules always tend to move downhill i.e, from higher concentration to lower concentration, but if a molecule has to move uphill i.e towards higher concentration then energy has to be spent.
Active transport requires energy in the form of ATP i.e. ATP must break down for the movement of molecule against its concentration gradient. (ans is A)
How do cells obtain materials they need and get rid of waste products???
Answers
cellular attraction between anodes and isotopes in the nutrient stew equation
Cells acquire needed materials through the active import of nutrients and molecules, breaking them down and building them back up into new structures. Wastes are processed and then eliminated through a system of diffusion in single-celled organisms or the circulatory system in multicellular organisms. Both the import of needed materials and the export of waste require a significant expenditure of energy.
Explanation:Cellular Material Processing:
Cells obtain the materials they need and get rid of waste products through various processes. They actively import nutrients and other molecules, metabolize (break down) them, and synthesize them into new molecules. This constant use of energy is required for both the synthesis and breakdown of molecules. For instance, large proteins that makeup muscles are actively built from smaller molecules.
Complex carbohydrates are broken down into simple sugars that the cell uses for energy. Similarly, cells ingest and break down bacteria and viruses. The cells must export waste and toxins to stay healthy, which is done through a complex network of blood vessels that supply the cells with oxygen and nutrients, and remove carbon dioxide and waste products.
Simple, single-celled organisms rely on diffusion for the removal of waste products and the intake of nutrients. In contrast, multicellular organisms like humans have evolved to have circulatory systems carrying nutrients and waste products to and from cells.
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You recognize that a child is choking and ask if you can help. the child nods frantically. you send someone to call 911 and stand behind the victim. what is your next action?
a. give back slaps
b. give abdominal thrusts
c. give chest thrusts
d. lay the child down
Answers
It's B, I got it right. You would do chest thrusts if their torso is to big to reach around or if they're pregnant.
Answer:
Option B, give abdominal thrusts
Explanation:
When somebody is choking and having a difficulty in breathing, the first thing is to look for help around you. If there is no one, instead of waiting it is better to rescue the person for one minute and then call on emergency response number 911.
Till the rescue helps arrive, it is better to provide abdominal thrust to the suffering person. In order to do so, one must firmly stand behind the patient and wrap arms under the arms and in front of the abdomen of the patient. Now make a fist and give quick upward thrust to the patient. Continue this till the choking object comes out.
Hence, option B is correct
The model below represents a phase of meiosis. What stage of meiosis does the picture below represent?
1Points
A drawing of a phase of meiosis with individual chromatids and the cell membrane starting to divide.
A
anaphase I
B
prophase I
C
telophase I
D
telophase II
Answers
Answer:
The correct answer is option C, that is, telophase I.
Explanation:
In telophase, I, the migration of the homologous chromosomes takes place towards the two poles as a consequence of the activity of the spindle. Thus, a haploid set of chromosomes comes towards each of the poles, and each exhibiting two chromatids. The reformation of nuclear envelope takes place around each of the chromosome set, the disappearance of spindle takes place, and is followed by cytokinesis.
The illustrated stage of meiosis is telophase I. In this stage, the chromosomes have moved towards the cell ends and the cell membrane is starting to divide. This leads to two non-identical daughter cells with half the chromosomes.
Explanation:The model you're describing represents the telophase I stage of meiosis. In telophase I, the chromosomes complete their move towards the opposite ends of the cell and the cell membrane starts to divide, preparing for cytokinesis (cell division). Individual chromatids are visible because the sister chromatids of each chromosome are still joined together, each one looking like a 'double chromosome'.
This division of the cell membrane is characteristic of telophase I and it signifies the near completion of the first meiotic division. The process results in two daughter cells that are not identical to the parent cell as it reduces the number of chromosomes by half.
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Please help, I think it is C?
Which tool enhances weather forecasts by enabling monitoring, which is necessary for predicting global weather and environmental events?
A) map
B) satellite
C) weather balloon
D) automated weather station
Answers
Correct Answer:
B -- Satellite
Explanation:
I just took the test : )
<Jayla>
Answer:
B. Satellite
Explanation:
Edge quiz / unit test
Hopes this helps and brainliest plz <3
Which organisms undergo both photosynthesis and cellular respiration?
A) Animals
B) Both plant and animals
C) Plants
Worth 20 points
Answers
The answer is C. Plants
Only plants undergo photosynthesis so A and B are automatically incorrect. The answer is plants.
Hope this helps you! :)
C) Plants
During photosynthesis, the plant necessitates carbon dioxide and water, both of which are discharged into the air during inhalation. And during respiration, the plant requires oxygen and glucose, which are both composed through the process of photosynthesis.
This method also produces oxygen, which is necessary for the endurance of aerobic life, such as human beings. Cellular respiration is the method by which plants and other life forms generate energy. Plants transport us both manners, thus producing food and energy.
If color is an inherited trait in beetles, and birds are more likely to eat brown beetles than green beetles,
a. the frequency of the green allele will increase.
b. the frequencies of the brown and green alleles will not change.
c. this causes the population to evolve due to genetic drift.
d. the frequency of the brown allele will increase.
e. this causes the population to evolve due to gene flow.
Answers
Final answer:
The correct answer to why the frequency of the green allele in beetles increases if birds prey more on brown beetles is natural selection, where the survival advantage of the green beetles leads to a higher frequency of the green allele over time.
Explanation:
If color is an inherited trait in beetles, and birds are more likely to eat brown beetles than green beetles, the correct answer would be:
a. the frequency of the green allele will increase.
This scenario is an example of natural selection, where the green beetles have a survival advantage over the brown beetles. Since birds are preying more on brown beetles, the brown allele is being removed more frequently from the gene pool, while the green allele, which confers a better camouflage, increases in frequency as those beetles survive and reproduce. It is important to note that this change in allele frequency is determined by the differential survival and reproduction of the beetles, not by chance or migration, which would be indicative of genetic drift or gene flow, respectively.
The factor(s) that determine the duration of a twitch in various types of fibers is the speed of the
A. removal of Ca2+ ions from the sarcoplasm only.
B. hydrolysis of ATP only.
C. movement of Na+ across their membranes only.
D. removal of Ca2+ ions from the sarcoplasm and hydrolysis of ATP.
E. removal of Ca2+ ions from the sarcoplasm and hydrolysis of ATP and movement of Na+ across their membranes.
Answers
Hai :3
Interesting question about physiology.
The duration of a twitch in various types of fibers is the speed of the removal of Calcium ions from the sarcoplasm. Therefore, your answer should be A.
A nonnative squirrel is introduced into a forest. Which would most likely prevent this squirrel from becoming an invasive species?
Answers
Answer: When the non native species is introduced into the forest then the squirrel should compete with the stronger animals present in the forest for the sake of resources.
The squirrels in this case will not win from the native species present there and ultimately the population of squirrel will decrease.
The population of squirrel will get extinct at a time and would not be considered as an invasive species.
C. The squirrel must compete with strong native competitors (apex)
Millions of years ago, many plants use carotenoids as their primary pigment. Today most plants use chlorophyll. What could explain this cahnge
Answers
I feel like we’re taking the same test rn