The development of new species is influenced by environmental conditions and geographic separation, leading to genetic isolation and speciation through adaptation to new ecological pressures and different environments.
The development of new species is primarily influenced by two factors: environmental conditions and geographic separation.
Environmental changes, such as a significant drop in water level, can cause a population to split into two groups, leading to a small subsection of the population being exposed to new ecological pressures. This smaller group's gene pool can quickly evolve if a favorable trait emerges, contributing to the rise of new species.
Additionally, geographic separation can lead to speciation by isolating portions of a population in different environments, prompting them to adapt in diverse ways. For example, mammals living in mountainous regions may evolve increased fur for the cold, while those in lowlands develop differently. Over time, these adaptations may lead to the formation of new species as these groups experience genetic isolation.
Explain genetic drift
Answer:
variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.
Explanation:
What term describes a species whose removal would affect many other species, both directly and indirectly
What term describes a species whose removal would affect many other species, both directly and indirectly: keystone species
Answer:
The correct answer is- Key stone species
Explanation:
Keystone species is that species whose presence and number in the ecosystem plays an important role in balancing the ecosystem and without them, the other species would be affected directly and indirectly.
A dominant predator is considered to be a keystone species because the removal of that predator allow their prey to explode in numbers which will decrease the overall biodiversity of the area. Prairie dogs, otters, bison are the examples of keystone species. So the correct answer is B. Key stone species.
Which part of cellular respiration produces the atp molecules
Glycolysis.
In glycolysis, glucose—a six-carbon sugar—undergoes a series of chemical transformations. In the end, it gets converted into two molecules of pyruvate, a three-carbon organic molecule. In these reactions, ATP is made.
its B.
this should be right thank you
The absorption of carbon dioxide from plants can be analyzed via satellite as shown in the image below. In the image below, green represents land areas where carbon dioxide is being absorbed, and blue represents sea areas where carbon dioxide is being absorbed. The darker the color, the more carbon that location absorbs each year.
What can you conclude about the location of the dot?
There is little carbon being released.
The carbon is sinking into long-term storage.
The carbon is causing climate change in this zone.
There is a forest where many trees are absorbing carbon.
It os being absorbed by the sea make it a long term because its a long process
Answer:
The carbon is sinking into long-term storage.
Explanation:
The area of the dot represents hydrosphere or water body of the earth such as the ocean. The ocean is a great absorber of carbon dioxide (CO₂) from the atmospheric air. One fourth which humans create by burning fossils fuels such as coal, petroleum, natural gas. In normal condition, ocean water is slightly alkaline but due to absorption of more CO₂, ocean water becomes more acidic in the long term. The alkalinity of the ocean is very important in maintaining a delicate balance needed for marine animals.
Compute A population of 100 flowering plants contains 60 plants that are homozygous for orange flowers (OO), 30 plants that are heterozygous for orange flowers (Oo), and 10 plants that are homozygous for white flowers (oo). Determine the frequency of the O allele and the frequency of the o allele in this population. Show your work.
The answer is; The frequency for allele O = 0.7746 while that of o = 0.2254
Well use the hardy Weinberg equation of a population at equilibrium; p2 + 2pq + q2 = 1
In our case, p2 will be 60/100 = 0.6; therefore p = square-root of 0.6 = 0.7746
Remember also that the frequencies of alleles of the same gene add up to one (1); i.e p + q = 1
Therefore q = 1 – 0.7746 = 0.2254
The frequency of the O allele is = 0.7745
The frequency of the o allele is = 0.2255
What do you mean by Purebred?
When identical genes or alleles are considered at a particular gene locus. It is called purebred.
According to Hardy-Weinberg genetic equilibrium,
[tex]P^2+2Pq+q^2=1[/tex]; P+q= 1
Given, [tex]P^2[/tex]= 60/100 = 0.6, P= √0.6 = 0.7745.
The frequency of the O allele is = 0.7745
If P+q=1, then,
0.7745+q=1, q= 1-0.7745 = 0.2255.
The frequency of the o allele is = 0.2255.
Therefore, the frequency of both alleles is determined.
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Which of the following correctly identifies the types of cell division describe in rows x and y
Answer:
B. Row x describes meiosis and row y describes mitosis
Explanation:
Mitosis is the process in which a cell divides to yield two daughter cells with same number of chromosomes as the parent cell. The process takes place in the somatic cells or the body cells. For example, a cell with 14 chromosomes divides to produce two cells with 14 chromosomes.Meiosis on the other hand is the process in which a cell divides into four daughter cells that have half the number of chromosomes as the parent cell. The process takes place in the germ line cells where gametes are produced. For example a cell undergoes meiotic division to produce four cells each with 7 chromosomes.Testes are adapted to produce
In Biology, the testes are adapted to produce sperm for male fertility and testosterone for secondary sex characteristics, involving tightly regulated processes within the body.
The subject of the question is Biology, specifically focusing on the function and adaptation of the testes in the human body. The testes are adapted to produce sperm and testosterone, which are crucial for male fertility and secondary sex characteristics.
The process of spermatogenesis occurs within the seminiferous tubules of the testes, optimized by a temperature slightly lower than the body's core temperature.
Testosterone production is regulated by the hypothalamic-pituitary-gonadal axis, which stimulates the Leydig cells in the testes.
which term refers to the genetic make up of an organism
the term "genotype" refers to the genetic makeup of an organism
Answer: genotype
Explanation: the genetic constitution of an individual organism.
Which one of the following is a difference between a normal cell and a cancer cell?
A.
Normal cells undergo apoptosis while cancer cells don’t.
B.
Normal cells do not respond to regulatory signals while cancer cells do.
C.
Normal cells invade surrounding tissues while cancer cells don’t.
Answer:
The answer of "which is the difference between a normal cell and a cancer cell" is A
Explanation:
Apoptosis is the process in which cells are destroyed or killed for the purpose of controlling their development and growth.
The normal cells follow this process but the cancer cell do not response to it and keep growing.
The difference is that Normal cells undergo apoptosis while cancer cells don't. Option A
What is a cancer cell?Apoptosis is a controlled cell death process that eliminates damaged or extraneous cells from the body while preserving tissue homeostasis. When damaged or after completing their usual tasks, healthy cells have the capacity to undergo apoptosis.
Contrarily, cancer cells frequently avoid apoptosis, enabling them to endure and carry on with unchecked cell division—one of the characteristics of cancer. Cancer cells' inability to undergo apoptosis adds to their unchecked development and resistance to natural regulatory syste
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Which characteristics best describe the human digestive system?
A, B, and C.
A and B mean the same thing, just reworded. C is talking about organs in the digestive system that help you with digesting, but are not considered in the digestive tract.
The human digestive system comprises of organs such as the mouth, esophagus, stomach, small intestine, and large intestine, which work together to digest food, absorb nutrients, and excrete waste. Accessory organs, including the liver and pancreas, aid digestion through enzyme production. The system also hosts normal microbiota that facilitate digestion and contribute to the immune system.
Characteristics of the Human Digestive System
The human digestive system is signified as an intricate series of glands and organs which processes food. In order to use the food we eat, our bodies have to break the food down into smaller molecules that it can absorb; it also has to get rid of waste. Majority of the digestion of food occurs in the small intestine. The main function of the large intestine is to eliminate water from the undigested matter and result in formation of solid waste which can be excreted.
The system begins with the mouth, where food enters and is chewed by the teeth. The salivary glands in the mouth produce saliva that begins to break down the food before it is swallowed. The food then travels through the pharynx and down the esophagus, reaching the stomach, where it is further digested. The liver, gallbladder, and pancreas produce enzymes and substances that assist in digestion, with the liver also processing nutrients absorbed from the small intestine.
Food moves next into the small intestine, where it is digested still further and the nutrients are absorbed into the bloodstream. The waste products of digestion (the parts that the body can't use) move into the large intestine, or colon, where water is absorbed and the remaining material is stored as feces before being expelled through the anus.
The normal microbiota of the digestive system plays a role in health and disease; they help with digestion and the immune system but can also be involved in certain digestive system infections or intoxications. The components of the human digestive system also include protective mechanisms to prevent infection and maintain the balance within the system.
1. What are some benefits of web-based applications
A. Convenience, compatibility, multiple platforms
B. Price, requires installation, stays up-to-date
C. Stays up-to-date, multiple platforms, no browser needed
2. Jeffrey would like to send a monthly newsletter to each person signed up to receive online communication which tool would be best?
A. Listserver
B. Social media
C. Web page
3. A ____ network is useful for connecting a small network
A. Campus area
B. Local area
C. Wide area
4. What does a URL ending in .edu indicate
A. Academic institution
B. Commercial site
C. Government agency
5. Adelle is having trouble connecting her new tablet to the internet which resource would be best and why?
A. FAQ; answers common questions
B. Scholarly article; explains current research
the benefit of web-based applications is for the option c
Answer:
The following are the correct answers to each question:
Q1:Option A: Some of the benefits of web-based applications are convenience, compatibility, and multiple platforms
Q2:Option A: Jeffrey should use Listservr to send the monthly newsletter to each person signed up.
Q3 Option B: A local area network is useful for connecting a small network
Q4: Option A: A URL ending in .edu indicates an Academic institution
Q5: Option A: Adelle should go to the FAQ section as it answers common questions
Explanation:
Q1: Web-based applications are a good option for businesses as they are convenient time wise and financial wise, people don't have to spend a lot of time receiving each application and talking to the applicant, they are also compatible with almost every device that has a connection to the internet, and they can be used in multiple platforms.
Q2: Listservr is a software application that allows a sender to send a message to a mailing list of people that, normally, have subscribed to receive information.
Q3: A local area network is a computer network that interconnects computers within a limited area such as a residence or a school
Q4: The domain .edu is one of the top domains in the internet and registrants need to be affiliated Academic institutions in order to be able to use it
Q5: FAQ is a section that most of websites and instruction manuals have online, in which the Frequently Asked Questions (FAQ) are answered.
Which best describes the main sources of energy in the United States
Primary energy sources include fossil fuels (petroleum, natural gas, and coal), nuclear energy, and renewable sources of energy.
What term refers to communities that remain unchanged for long observable periods of time?
A) Successive communities
B) Stable communities
C) Climax communities
D) secondary communities
Answer:
The right option is; C) Climax communities
Explanation:
Climax communities are communities of organisms (plants, animals and fungi) that have reached a steady stage and remain stable with each other and their environment for a long period of time. A climax community is the last stage of ecological succession which remains relatively stable until affected by a disturbing event such as fire. Tundra, deciduous, coniferous, and tropical rain forests are examples of climax communities.
Answer:
C) Climax communities
Explanation:
What can create submarine canyons by cutting through bottom sediments and bedrocks of seafloors
its turbidity currents
Final answer:
Submarine canyons are formed on continental shelves by turbidity flows, which are underwater landslides of sediment-rich water that erode the seafloor. These currents originate from river systems and the process is further intensified during periods of low sea level, leading to the gradual deepening and expansion of canyons.
Explanation:
Submarine canyons are significant geological formations found on continental shelves, often affiliated with large river systems that extend into the sea. These canyons can be created by turbidity flows, which are underwater landslides consisting of slurries of sediment-rich water that move down the continental slope. Turbidity flows have a density higher than the surrounding seawater, enabling them to carve through the seafloor sediments and bedrock.
BRAINLIEST TO BEST ANSWER! A flounder lies motionless on the sandy bottom of the ocean floor. It blends in so well with its environment that predators cannot see it. How does this help the flounder?
Question 1 options:
It helps the flounder reproduce.
It helps the flounder find food.
It helps the flounder defend itself.
It helps the founder move from one place to another.
The correct answer would be "it helps the flounder defends itself."
A flounder is a fish, just think about the little fish from the movie the little mermaid. If it stays still in the colours that blend in with it, then it would be protecting itself.
Camouflaging is a defense mechanism used to avoid predation. The correct option is C). It helps the flounder defend itself.
What is a defense mechanism against predation?
Mechanism against predation refers to the ways in which species avoid predation. These mechanisms are evolutive adaptations used by different organisms to protect and defend themselves.
Individuals can develop organs as weapons or different behaviors that lead them to avoid being preyed on.
Camouflaging is one of these mechanisms. The individual remains motionless blending with the environment, and predators can not detect their presence. This is a defense mechanism.
The correct option is C) It helps the flounder defend itself.
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Atoms are the most basic unit of matter. Two or more atoms from the same or different elements can combine to form molecules.
A.
cells → organs → tissues → organ systems → organism
B.
cells → tissues → organs → organ systems → organism
C.
cells → organ systems → organs → tissues → organism
D.
cells → organs → organ systems → tissues → organism
B cells- tissues- organs- organ systems- organism
Which of these describes one of the functions of the nervous system? A. providing the cells of the body with energy B. sensing changes in the external environment C. transporting nutrients throughout the body D. removing waste materials from the body
Answer:
Explanation:
B. sensing changes in the external environment
PLEASE PLEASE HELP!!
Four boxes of the same volume are each completely filled with one of the following items: sand, marbles, paper clips, or dice. the order of boxes from least to greatest mass is as follows paperclips, dice, marbles and sand.
Which box has the greatest density?
A. The box filled with paper clips.
B. The box filled with sand.
C. The box filled with dice.
D. The box filled with marbles.
I think it would be B. The boxed filled with sand. But I'm not 100% sure
Answer: B. The box filled with sand
Explanation:
describe at least one evidence for evolution that scientists use to show common ancestry among organisms
fossil record i think.
DNA similarity :)
good luck
1) How many are Omnivores?
2) How many are Producers?
3) How many are Herbivores?
4) How many are Carnivores?
5) How many are Predators?
6) What kind of organism is missing?
7) How many are Parasites?
8) How many are prey?
9) How many are Consumers?
10) What animal does not have a natural predator in this food web?
1.) 0
2.) 2
3.) 4
4.) 3
5.) 3
6.) ?
7.) 1
8.) 6
9.) 3
10.) Fox
Hope This Helps! Have A Nice Day!!
What are the four types of friction?
Answer: Static sliding rolling and fluid friction
Explanation:
Look at the two fatty acids below.
What factor determines how much linoleic acid can twist and bend its shape?
i would say A.
the double bond in an unsaturated fatty acid produces a kink in the molecule. The bend in the carbon chain, however, is much more pronounced in the cis isomer compared to the trans isomer. For this reason, cis fatty acids (and triacylglycerols made from them) do not solidify like trans fatty acids. Due to the larger bend, the cis isomers cannot line up next to one another in as ordered a fashion as the trans isomers and can be more flexible.
The number of double bonds will determine how much linoleic acid can twist and bend its shape. Hence, option A is correct.
What are fatty acids?Fatty acids are the building blocks of the fat in our bodies and in the food we eat.
The double bond in an unsaturated fatty acid produces a kink in the molecule. The bend in the carbon chain, however, is much more pronounced in the cis isomer compared to the trans isomer.
For this reason, cis fatty acids (and triacylglycerols made from them) do not solidify like trans fatty acids.
Due to the larger bend, the cis isomers cannot line up next to one another in as ordered a fashion as the trans isomers and can be more flexible.
Hence, option A is correct.
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please help me
(01.01 LC)
Which of the following describes the feeding relationships from one organism to the next in a linear path?
Food chain
Trophic level
Food web
Consumer chart
(01.01 MC)
Food web starting with sun and pointing to grasshopper and squirrel; Grasshopper pointing to squirrel, wolf, and snake; squirrel pointing to wolf, snake, and bird; wolf pointing to decomposition with worms and mushrooms; snake pointing to wolf and decomposition with worms and mushrooms; bird pointing to decomposition with worms and mushrooms; decomposition pointing to the sun stating soil nutrients.
According to this food web, which of the following would be considered secondary consumers?
Plants
Grasshoppers
Wolves
Mushrooms
Question 3(Multiple Choice Worth 3 points)
(01.01 MC)
Which best describes the role of a secondary consumer in a food web?
Carnivore that feeds on producers
Herbivore that feeds on producers
Herbivore that feeds on primary consumers
Carnivore that feeds on primary consumers
Question 4(Multiple Choice Worth 3 points)
(01.01 MC)
The table shows the commonly eaten foods of some organisms.
Commonly Eaten Foods List
Group Commonly Eaten Foods
A owls, raccoons, salmon
B birds, fruits, nuts, blossoms
C branches, barks, twigs, acorn
D vegetables, meat, grains
Which groups contain both primary and secondary consumers?
A and B
B and C
C and D
B and D
Question 5(Multiple Choice Worth 3 points)
(01.01 HC)
Food web starting with sun and pointing to grasshopper and squirrel; Grasshopper pointing to squirrel, wolf, and snake; squirrel pointing to wolf, snake, and bird; wolf pointing to decomposition with worms and mushrooms; snake pointing to wolf and decomposition with worms and mushrooms; bird pointing to decomposition with worms and mushrooms; decomposition pointing to the sun stating soil nutrients.
If we removed the decomposers from this food web, how would it affect the balance of the ecosystem?
There would be an increase in dead matter and a lack of nutrients in the soil.
There would be a decrease in dead matter and a lack of nutrients in the soil.
There would be an increase in dead matter and an increase in nutrients in the soil.
There would be a decrease in dead matter and an increase in nutrients in the soil.
Question 6(Multiple Choice Worth 3 points)
(01.01 LC)
Which of the following organisms are carnivores?
Secondary consumers
Decomposers
Primary consumers
Producers
Question 7(Multiple Choice Worth 3 points)
(01.01 LC)
Which of the following organisms are carnivores?
Consumers
Decomposers
Omnivores
Producers
Question 8(Multiple Choice Worth 3 points)
(01.01 LC)
Which of the following is an example of a consumer?
Tree
Sun
Rabbit
Mushroom
The feeding relationships in a linear path are described as a Food Chain. Wolves are the secondary consumers, who are Carnivores feeding on primary consumers. Removal of decomposers results in increased dead matter and reduced soil nutrients. Secondary Consumers are carnivores, and an example of consumers in general can be a Rabbit.
Explanation:The term that describes the feeding relationships from one organism to the next in a linear path is a Food Chain. In the given food web, a secondary consumer is identified as an organism that eats primary consumers, in this case, the Wolves are associated with this role. Hence, wolves are the secondary consumers. Furthermore, a secondary consumer can be defined as a Carnivore that feeds on primary consumers.
When observing the commonly eaten foods of organisms, groups that contain both primary and secondary consumers are B and D. Group B contains birds that feed on producers (fruits, nuts, blossoms - primary consumers) and also possibly small animals (secondary consumers) while Group D includes omnivores which could be either primary (if they eat plants) or secondary consumers (if they eat meat).
If decomposers were removed from a food web, this would cause an increase in dead matter and a lack of nutrients in the soil due to the crucial role of decomposers in recycling nutrients back into the soil from dead organic matter. Carnivores are typically represented by Secondary Consumers as they usually eat primary consumers (meat). Examples of carnivores in general can be Consumers that primarily eat other animals. Finally, the term consumer is applicable to a Rabbit, as a rabbit consumes plants and hence fits in as a primary consumer within the food web.
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Electric Charge. options: Radiation Discovery Kinetic Energy Electricity
Electric Charge. options:
Radiation
Discovery
Kinetic Energy
Electricity
The correct answer is electricity
Because of the large heat of __________ of water, the evaporation from a liquid surface is a very effective cooling mechanism. The human body makes use of evaporative cooling by __________ to give off energy even when surrounded by a temperature higher than body temperature.
Because of the large heat of __________ of water, the evaporation from a liquid surface is a very effective cooling mechanism. The human body makes use of evaporative cooling by __________ to give off energy even when surrounded by a temperature higher than body temperature.
Because of the large heat of __________ of water, the evaporation from a liquid surface is a very effective cooling mechanism.
Vaporization
The human body makes use of evaporative cooling by __________ to give off energy even when surrounded by a temperature higher than body temperature.
Perspiration
~Hope this answers your question!~
Answer:
Because of the large heat of vaporization of water, the evaporation from a liquid surface is a very effective cooling mechanism. The human body makes use of evaporative cooling by perspiration to give off energy even when surrounded by a temperature higher than body temperature.
Explanation:
Vaporization is the name given to the physical transformation from liquid to gaseous. In this transformation there are only changes in the physical character of the matter, that is, after its occurrence, the matter remains with the same constitution (composition). The water goes through the vaporization process that changes from liquid water to water vapor through temperature. Due to the great heat of water vaporization, the evaporation of a liquid surface is a very effective cooling mechanism.
Perspiration, in turn, is a normal and healthy bodily function, which begins to occur a few months after birth. Humans perspire to cool their body temperature. In science, this process is called thermoregulation. When it occurs, the brain sends a signal to more than 3 million glands in the body, which immediately release sweat. Sweat is a liquid composed of water, salts and proteins. As we sweat, this liquid evaporates from the skin to reduce body temperature. The human body makes use of evaporative cooling by perspiration to release energy, even when surrounded by a temperature above body temperature.
Which of the following technologies would best help a farmer have many identical horses in his farm?
A.Genetic engineering, because it helps increase the diversity of animals
B. Cloning, because it can produce genetically exact copies of an organism
C. Cloning, because it can create different versions of an organism by manipulating the genes
D. Genetic engineering, because it increases the variation in a certain species by copying genes
I believe it is A. A.Genetic engineering, because it helps increase the diversity of animals.
Answer:
A. A Genetic engineering, because it helps increase the diversity of animals.
6. What do you think is the underlying cause of all these symptoms in Barbara?
What is wrong with her?
7. Some patients with thyroid or thyroid hormone problems develop a goiter. List
two possible causes of this goiter.
8. Barbara does not have a goiter at the moment. If her condition continues unchecked will
she develop one?
9. Extrapolate the knowledge you have of the hypothalamic-anterior pituitary-thyroid
negative feedback loop to explain how an anabolic steroid (testosterone) abuse would
lead to testicular atrophy (breakdown).
which specialized organelle is shown
I believe it's the mitochondrion.
How many alleles do you get from each parent?
One from each parent
23 from the dad 23 from the mom to make 46 to make the baby
List from most polar to least polar
Chlorophyll a
Chlorophyll b
Beta carotene
Xanthophyll
The answer from most polar to least polar is:
Xanthophyll
Chlorophyll b
Chlorophyll a
Beta carotene (not polar at all)
Final answer:
From most polar to least polar, the order is Chlorophyll b, Chlorophyll a, Xanthophyll, and Beta carotene, due to their structural differences and the presence of polar functional groups in Chlorophyll b and a, as well as the oxygen content in Xanthophyll.
Explanation:
The polarity of pigments depends on their structure and the presence of functional groups that can participate in hydrogen bonding and other polar interactions. Considering the structures of the pigments involved:
Chlorophyll a has a methyl group (-CH3) in the structure where chlorophyll b has an aldehyde (-CHO).
Chlorophyll b is more polar than chlorophyll a due to the presence of the aldehyde group which can form more hydrogen bonds than a methyl group.
Xanthophyll contains oxygen and is also more polar than carotenes, which do not contain oxygen.
Beta carotene (ß-carotene) is the least polar because it lacks the oxygen-containing groups that are present in xanthophyll and chlorophylls.
Thus, the order from most polar to least polar is:
Chlorophyll b
Chlorophyll a
Xanthophyll
Beta carotene