Answer:
Science is used to describe the knowledge about the universe and the method of obtaining that knowledge
The word science describes knowledge about the universe and its methods of acquisition using evidence and logic. It involves the scientific method, a systematic process of observation, experimentation, and hypothesis testing. Science seeks to explain general truths and natural laws.
The word used to describe knowledge about the universe and the method of obtaining that knowledge is science. Science is a distinctive way of gaining knowledge about the natural world that tries to answer questions using evidence and logic. It covers general truths or the operation of general laws, especially when acquired and tested by the scientific method.
The scientific method is a systematic process of observation, experimentation, and hypothesis testing. For instance, to understand the laws of motion, scientists observe natural phenomena, formulate hypotheses, conduct experiments, and revise their theories based on the acquired data.
Which bone is part of the axial skeleton?
Clavicle
Scapula
Sacrum
llium
Answer:
Sacrum is the bone.
Explanation:
Answer:
C. Sacrum
Explanation:
The axial skeleton makes up the bones along the central system of the body, while the appendicular skeleton comprises the bones along the appendages of the body (in other words, arms, feet, legs, etc).
The clavicle is the collarbone; scapula is shoulder blade bone; and ilium is the hip bone. Of the four choices, only the sacrum, which is at the base of the spinal cord, is located along the central axis of the body and is thus part of the axial skeleton.
C is the answer.
There are 500 sheets of printing paper in a pack. Juan notes that the thickness of 500 sheets is 1.3 inches. The thickness, in inches, of a single sheet is given by the expression
A)1.3 divided by 500
B)1.3+500
C)500x1.3
D)500divided by 1.3
Describe one process by which the metamorphic rock marble forms from the sedimentary rock limestone. *
Final answer:
Marble forms from limestone through a process called metamorphism, which involves heat, pressure, and chemical reactions. Impurities in the limestone can give marble its colorful markings. Marble is mined from quarries and used for construction and art due to its durability.
Explanation:
Marble is formed when limestone undergoes a process of metamorphism, which is the transformation of rocks due to heat, pressure, and chemical reactions. During this process, the calcite or dolomite in the limestone is recrystallized, resulting in the formation of marble. Impurities in the limestone can give marble its colorful markings.
The metamorphism of limestone into marble occurs deep within the Earth's crust. The intense heat and pressure from tectonic forces cause the mineral composition and texture of limestone to change, resulting in the formation of the harder and more compact marble.
Marble is often mined from quarries and used for various purposes, such as building materials and sculptures, due to its durability and aesthetic qualities.
1/Producer
2/primary consumer
3/secondary consumer
4/predator
5/decomposer
PLEASE HELP ASAP !!!
Answer:
Decomposers
Explanation:
From what I can see i don't notice any mushrooms or Vultures which are mainly the 2 first picks for decomposers in a food web.
Which of the following planets experiences the strongest gravitational pull from the sun compared to the others?
The planet that experiences the strongest gravitational pull from the sun is Mercury, because it is the closest planet to the sun.
Explanation:In terms of gravitational pull from the sun, the strength is determined by two factors: Mass and Distance. Considering our solar system, the planets closer to the sun experience a stronger gravitational pull due to their proximity. Among all the planets, Mercury, being the closest planet to the sun, experiences the strongest gravitational pull.
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1. Biotic factors like wolves can have an effect on abiotic factors like rivers.
True or False
2. Energy can not be transferred from one trophic level to the next.
True or False
3. Extirpation is when a species disappears from a part of its range.
True or false
Answer:
1. True
Biotic factors can have effect on abiotic factors like water by the way they use it and how much they drink. If biotic factors drink too much water in a rivver then it could end up with limited amount of water for the ecosystem.
2. False
On average, about 50 percent of energy available within one trophic level is transferred to the next trophic level.
3. True
Extirpation is extinction of a species in a given area.
Do the information given and the map best describe adaptive evolution, convergent evolution, or coevolution? Explain
your response.
Answer: The information best fits adaptive evolution because all of the finches have the same common ancestor. They all became specialized to adapt to the type of food in their environment.
Explanation:
Because all of the finches share a common ancestor, the information best fits adaptive evolution. They all specialized in order to adapt to the type of food available in their environment.
What is evolution?Convergent evolution refers to the impartial evolution of similar characteristics in species from different time periods or epochs.
Convergent evolution produces analogous structures that have similar form or function but were not present in those groups' last common ancestor.
The information best fits adaptive evolution since each of the finches belong to the same ancestor. They all specialized to adapt to the food available in their environment.
Thus, the information given as well as the map is perfectly describing the evolution.
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TRUE OR FALSE
during transcription the information on a DNA molecule is copied into an mRNA molecule
Answer:
TRUE
Explanation:
transcription / DNA transcription. Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.
Final answer:
The statement is TRUE as during transcription, information from DNA is copied to mRNA, which then carries the genetic code to ribosomes for protein synthesis.
Explanation:
TRUE. During transcription, the information on a DNA molecule is indeed copied into an mRNA molecule. Transcription is a crucial process in the flow of genetic information within a cell. This process occurs in the nucleus where the enzyme RNA Polymerase synthesizes a strand of mRNA using the DNA strand as a template. The mRNA strand that is created is complementary to the DNA template strand, following the base pairing rules, with uracil (U) pairing with adenine (A) instead of thymine (T) which is found in DNA.
For example, a DNA sequence ACGGGTAAGG will be transcribed into the mRNA sequence UGCCCAUUCC. The mRNA then carries this genetic code from the nucleus to the ribosomes in the cytoplasm. Here translation occurs, and proteins are synthesized based on the sequence of nucleotides in the mRNA.
A specimen collection helps a scientist do an experiment by:
A. substituting a good hypothesis with an even better one.
B. indicating the most appropriate measurement tool
C. delivering the most exciting information of the previous day.
D. providing access to objects that are hard to find.
Answer:
D.
Explanation:
just did it on apex
A specimen collection helps a scientist do an experiment by providing access to objects that are hard to find.
What do you mean by Specimen collection?Specimen collection may be defined as the process of obtaining tissue or fluids for laboratory analysis or near-patient testing.
Specimen collection provides a direct path for those objects or things that take time in searching and analyzing.
Therefore, a specimen collection helps a scientist do an experiment by providing access to objects that are hard to find.
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What happens in photo system
Answer:
Photosystem II is the first link in the chain of photosynthesis. It captures photons and uses the energy to extract electrons from water molecules. ... First, when the electrons are removed, the water molecule is broken into oxygen gas, which bubbles away, and hydrogen ions, which are used to power ATP synthesis.
Answer:
Photosystems are functional and structural units of protein complexes involved in photosynthesis that together carry out the primary photochemistry of photosynthesis: the absorption of light and the transfer of energy and electrons. Photosystems are found in the thylakoid membranes of plants, algae and cyanobacteria.
PLZ HELP 13+points
Select all the correct answers. Review the graph. What can you conclude about the rate of photosynthesis and respiration in a plant? *
A)Plants can’t photosynthesize at night.
B)Photosynthesis peaks at sunrise.
C)Plants need ATP production for the entire day.
SRRY the other one didnt have the graph so here it is
Answer:
A)
C)
Explanation:
Plants cannot photosynthesize at night because light is essential for photosynthesis. Plants also need to breath all day.
This is a picture of a green algae. It lives in ponds and lakes. It uses sunlight to make its own food. A land plant has lots in common with the algae. All but one statement tells how the two are alike. That is
A) they both are made of cells.
B) they both need water to survive.
C) they have chloroplasts to make food.
D) they have cells that are exactly the same.
Answer:
It’s actually D
Explanation:
Got B wrong
Both green algae and land plants are made up of cells, they are not exactly the same. However, they do share the characteristics of needing water to survive and having chloroplasts to make their own food through photosynthesis. The correct option is D.
What is Green algae?Green algae are creatures that are distinguished by possessing whiplash-shaped (smooth) flagella and chlorophylls a and b as the primary photosynthetic pigments, starch found within the chloroplast as the primary storage product.
They have cells that are exactly the same. This statement is incorrect because, while both green algae and land plants have cells, their cells are not exactly the same. However, they do share similarities like being made of cells, needing water to survive, and having chloroplasts to make food.
Therefore, the correct option is D.
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What function in plant cells is comparable to an animal eating
food?
a.Chloroplasts absorbing solar energy for cellular activities
b.Nuclei directing cellular activity from information held in DNA
c.Vacuoles storing waste, protecting the rest of the cell from contamination
d.Cell walls providing rigidity and support for the cell
structure
Answer:
It is A not B
Explanation: Becase the Chloroplasts absorb solar energy for food.
How do trophic level, food web, food chain , consumer, and producers work together in an ecosystem and which of the terms can be used to include all of the rest of the terms ?
Answer:
Explanation:
The trophic level of an organism is the position it occupies in a food web/food chain. Producers are typically plants that get their energy from the sun, and consumers are the organisms that eat the producers. The last question I'm not too sure. Hope I could help a little!
A farmer mates a goat and sheep together. However, he
finds that the new hybrid animals, who seem otherwise
healthy, cannot have offspring of their own. What is this
an example of?
A. Gametic isolation
B. Mechanical isolation
C. Low hybrid viability
D. Post zygotic barrier
The example should be of gametic isolation.
What is gametic isolation?Gametic isolation refers to the type of prezygotic barrier in which the gametes like egg and sperm should be come into the contact however there should be no fertilization. Also it is not able to record one another in various species. Since the farmer determined that the new hybrid animals so it represent the gametic isolation.
Therefore, the correct option is a.
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Final answer:
The inability of hybrid animals from a goat and sheep mating to reproduce is an example of a postzygotic barrier, which involves sterility or reduced viability in hybrids due to significant genetic differences.
Explanation:
A farmer mates a goat and sheep together, but the resultant hybrid animals cannot have offspring of their own. This scenario exemplifies a postzygotic barrier, one of the mechanisms of reproductive isolation in genetics. Postzygotic Isolating Mechanisms come into play even if fertilization is successful; they operate through genetic differences that become significant enough that the hybrids display reduced viability or fertility compared to the parental species. A common manifestation of this barrier is sterility in hybrids, as seen in mules who are unable to produce offspring despite being bred from a horse and a donkey. This type of reproductive isolation underlines the critical role genetic compatibility plays in the viability of offspring in cross-species breeding attempts.
Given below is a map of the west coast of the United States. The red line depicts the San Andreas Fault, a transform boundary that runs parallel to the coast. The San Andreas Fault separates the North American plate on the east from the Pacific plate on the west.
Based on this information, which of the following most likely occurs near the San Andreas Fault?
A.
frequent earthquakes
B.
frequent droughts
C.
subduction of oceanic crust
D.
deposition of sediment
Answer:A . Frequent earthquakes
Explanation:
Daphnia longicephala is a freshwater crustacean that can detect chemical cues produced by the predator Notonecta glauca. Researchers raised Daphnia clones and observed that those exposed to Notonecta chemical cues during their development produced larger protective crests. Crest height and width are measured as ratios to body length. The increase in the size of the crest width and height is not associated with a corresponding change to the Daphnia’s genome. Researchers hypothesize that growing a crest is energetically costly, so Daphnia does not develop the large crests in the absence of Notonecta.
b. Explain how the presence of Notonecta chemical cues affects gene expression in the Daphnia.
Answer:
Crustacean Daphnia longicephala lives in freshwater that can detect chemical cues produced by the predator Notonecta glauca and in response of these chemicals the Daphnia produces crest for defense purpose.
Explanation:
Notonecta glauca is a predator which feeds on Daphnia longicephala. For protection from predator Daphnia produces crest which is a defense mechanism in the Daphnia against Notonecta. This defense is associated with the chemical produces by Notonecta . So we can say that the chemical is responsible for the formation in crest in Daphnia which does not formed in normal condition.
1. What codes for a protein?
2. What is the monomer of a protein?
3. What are the two major steps in protein synthesis?
4. What happens during transcription?
5. What does the m stand for in mRNA?
6. Where does the mRNA go after it's been transcribed?
7. What happens during translation?
8. What does the r stand for in rRNA?
9. What does the t stand for in tRNA?
10. What does the tRNA do?
11. What is a triplet of nucleotides on an mRNA called?
12. What type of bond is formed between amino acids during protein synthesis?
Which is the change in size of a group of organisms of the same species over time?
population growth
death rate
birth rate
immigration and emigration
Answer:
population growth
Explanation:
Answer:
Population Growth.
Explanation:
:)
Whales have what seem like remnants of a pelvis and femur, as shown here.
What are these structures an example of?
transitional structures
analogous structures
vestigial structures
adapted structures
Answer:
vestigial structures
Explanation:
A "vestigial structure" or "vestigial organ" is an anatomical feature or behavior that no longer seems to have a purpose in the current form of an organism of the given species. Often, these vestigial structures were organs that performed some important functions in the organism at one point in the past.
Answer:
vestigial structures
Explanation:
When a predator catches its prey, it may appear that the prey species suffers. But there are benefits to this type of interaction for prey species as well. What are two way in which the prey species might benefit from the predator hunting them?
Final answer:
Predation can benefit the prey species by maintaining sustainable population levels and promoting genetic fitness through natural selection, leading to advantageous adaptations like camouflage.
Explanation:
When a predator catches its prey, it may seem detrimental to the prey species at first glance. However, there are benefits to the prey species from the act of predation. One benefit is that predation can help maintain the prey population at a sustainable level, preventing overpopulation and the resulting resource depletion that would impact future generations. Another benefit is related to natural selection; the predation pressure can lead to an increase in the genetic fitness of the prey population by disproportionately removing individuals that are less adept at avoiding predators. This can lead to the development of advantageous adaptations like camouflage or mimicry to better evade future predation. Predation is a complex interaction that plays a significant role in the evolutionary and ecological processes that shape life in ecosystems.
Which best compares habitat and a niche?
Answer:B habitat is a place in Which organisms live, and niche is the way in which an organism fits into its habitat
Explanation:
Which energy transformations are happening in this image?
radiant to electrical to thermal
thermal to electrical to radiant
electrical to radiant to thermal
electrical to thermal to radiant
Answer: Electrical -> Radiant Energy -> thermal Energy
Explanation:
Electrical energy is transferred from the electrical outlet to the microwave. Radiant energy is transformed into thermal energy as the popcorn kernels absorb the microwaves (Radiant Energy). This causes the kernels to become hot and pop (Thermal energy).
Hope this helps!
What is the net ATP production at this stage of cellular respiration?
2 ATP
4 ATP
32 ATP
36 ATP
Answer:
2 ATP
Explanation:
Answer: its 2 ATP
Explanation:
Which best describes the organisms in this kingdom?
They are autotrophic and have eukaryotic cells
They are made of prokaryotic cells
They are multicellular and do not have cell walls
They are always single celled and produce their own food
Answer:
They are amyotrophic qnd eukaryotic cells
What type of cellular respiration does not require oxygen?
Answer:
anaerobic respiration does not require oxygen
Anaerobic respiration, which occurs without the need for oxygen, is an essential process for certain prokaryotes like bacteria and Archaea. This process, which often involves the Krebs cycle, is found in all animals and plants and occurs in the cytosol.
Explanation:The type of cellular respiration that does not require oxygen is anaerobic respiration. This process, sometimes known as fermentation, uses a molecule other than oxygen as the final electron acceptor. It often occurs in prokaryotes, including Bacteria and Archaea, and commonly involves an intact Krebs cycle, also known as the citric acid cycle, to extract energy from carbohydrates. This anaerobic cellular respiration process occurs in the cytosol and can be found in various types of organisms, including all animals and plants.
One alternative to aerobic respiration is anaerobic respiration. In this process, an inorganic molecule other than oxygen, like nitrate, is used as a final electron acceptor in the process of metabolism without oxygen. An example would be methanogens, a group of archaeans, that reduce carbon dioxide to methane to oxidize NADH, ensuring the continuation of glycolysis. These microorganisms are commonly found in soil and in the digestive tracts of ruminants, such as cows and sheep.
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What problem would a person most likely have if her kidney did not work
correctly?
O
O
A. She could not produce proteases.
B. It would be impossible to produce saliva.
O
c. The balance of water in her body would be wrong.
O
D. She would be unable to digest carbohydrates.
Answer:
C
Explanation:
Proteases are produced by cells in the stomach
Saliva is produced by the salivary glands in the mouth
Balance of water is regulated by the kidney. If a person's kidney fails, this function will be impeded. Excess water cannot be expelled from the body in the form of urine.
Carbohydrates are digested by enzymes secreted by salivary glands and small intestine.
DNA one side = G T A T G A C T T
DNA other side =
Answer:
DNA other side = C A T A C T G A A
Hope you could get an idea from here.
Doubt clarification - use comment section.
which fossil would most likely be found in the oldest rock layer?
A) flying dinosaur
B) mastodon
C) trilobite
D) saber-tooth cat
Answer:
C
Explanation:
Trilobites were alive the longest time ago, so they would be found in the oldest rock layer.
evaluate the hypothesis that mutations in slc7a9 have a greater effect on the transport of cysteine across the plasma membrane of kidney cells than do mutations in slc3a1
Mutations in slc7a9 could have a greater effect on the transport of cystine, due to its direct role in the transport process, as compared to slc3a1, which mainly contributes to the stability and function of the transporter. The impact may be greater in slc7a9 mutations as it directly alters the protein's primary structure, therefore greatly affecting the transport function.
Explanation:The hypothesis that mutations in slc7a9 have a greater effect on the transport of cysteine across the plasma membrane of kidney cells than mutations in slc3a1 could be evaluated by observing functional changes in cysteine transport in cells with respective mutations. Both SLC7A9 and SLC3A1 are associated with cystine-uria, a condition characterized by the impaired transport of cystine and related amino acids in the kidney cells.
However, the SLC7A9 gene specifically codes for a subunit of a transport protein that is directly involved in cysteine transport, whereas SLC3A1 codes for a subunit that is needed for the stability and function of the transporter but does not directly mediate transport. Therefore, logically, a mutation in SLC7A9 would have a greater impact on cysteine transport than a mutation in SLC3A1. This is because the primary structure of the protein is directly affected in SLC7A9 mutation, thus greatly hampering the transport process as compared to SLC3A1 mutation.
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Mutations in SLC7A9, which encodes the light subunit directly involved in amino acid transport, are hypothesized to have a greater effect on cysteine transport in kidney cells compared to mutations in SLC3A1, the gene for the heavy subunit providing structural support. To evaluate this hypothesis, genetic analysis and functional studies of the transporters, as well as clinical observations, would be necessary.
Explanation:Evaluating the Effects of SLC7A9 vs SLC3A1 MutationsSLC7A9 and SLC3A1 are genes that encode different subunits of a protein transporter responsible for the renal reabsorption of amino acids, such as cysteine, in the kidney tubules. Mutations in these genes are associated with cystinuria, a condition characterized by the impaired transport of cysteine, leading to the formation of cystine stones in the urine. Since the transport of cysteine across the plasma membrane is a complex process involving both subunits, it is essential to evaluate their roles in maintaining the functionality of the transporter.
One would hypothesize that a mutation in SLC7A9, which encodes the light subunit, might have a more significant impact on cysteine transport due to the direct role of this subunit in amino acid transport. In contrast, the SLC3A1-encoded heavy subunit is thought to mainly provide structural support and potential indirect regulation. Considering each subunit's function, mutations in SLC7A9 could be more detrimental to cysteine reabsorption and lead to more severe symptoms of cystinuria compared to mutations in SLC3A1.
However, to evaluate the hypothesis regarding the impact of mutations in these genes, experimental studies including genetic analysis, protein function assays, and clinical data from patients with these mutations would be needed. It may be discovered that the loss of the support function from the SLC3A1 subunit also greatly impairs the overall transporter function, leading to significant effects on cysteine transport.
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