Select the reasons why sympatric speciation is difficult to find or document.
Diverging species occupy the same geographic location.
Gene flow among diverging groups continues, despite some nonrandom mating.
Diverging species are in a range large enough to cause their physical separation.
Geographic barriers partially isolate some populations from others.

Answers

Answer 1

One reason why sympatric speciation is difficult to find or document is that diverging species occupy the same geographic location, making it hard to distinguish between them.

The reasons why sympatric speciation is difficult to find or document include:
1. Diverging species occupy the same geographic location: This makes it challenging to identify and track speciation events since they are occurring in the same area without any physical barriers to separate the populations.
2. Gene flow among diverging groups continues, despite some nonrandom mating: When gene flow is still occurring between the diverging populations, it can be difficult to determine if they are truly undergoing speciation or simply experiencing temporary genetic variation. This complicates the documentation of sympatric speciation.
In summary, sympatric speciation is difficult to find or document due to the shared geographic location of diverging species and the ongoing gene flow among them.

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Related Questions

When a chromosome undergoes a deletion mutation, information is? a.repeated
blost
c.reversed
d.transferred

Answers

When a chromosome undergoes a deletion mutation, information is lost. Option B is correct.

A deletion mutation is a type of genetic mutation in which a section of DNA is lost or deleted from a chromosome. This can occur due to errors in DNA replication, environmental factors, or other genetic mechanisms.

Deletion mutations can have a range of effects on gene expression and protein function, depending on the size and location of the deleted region. In some cases, the deletion may result in the loss of a single gene or a portion of a gene, which can affect the function of the protein encoded by that gene. In other cases, larger deletions may affect multiple genes and have more widespread effects on the organism's phenotype.

However, regardless of the specific effects of a deletion mutation, the fundamental consequence of this type of mutation is the loss of genetic information from the affected chromosome.

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Explain why Euglenozoa cannot be classified as either plants or animals?

Answers

Euglenozoa are monophyletic group of flagellated protists as well as free-living, symbiotic, and parasitic species. According to genetic studies, Euglenozoa are meither plant nor animal despite the suffix zoa. They are somewhat the living dependent of a few of the primal unicellular organisms called eukaryotes. It is also a genus of unicellular flagellate protists where the word "unicellular" means that the organism consists of one cell only that's why they're not considered plant or animals.

What is an example of an environmental effect on phenotype?

1. the large variety found in the color of human eyes
2. the gender of sea turtles being affected by the temperature
3. a wide variation in the amount of milk produced by cows
4. a dihybrid Punnett square predicting the wrong results for two different genes

Answers

An example of an environmental effect on phenotype is that the gender of sea turtles being affected by the temperature which is therefore denoted as option 2.

What is Phenotype?

This is referred to as the set of observable characteristics or traits of an organism and examples include height, eye color etc.

The temperature of the developing eggs is what decides whether the offspring will be male or female and we are aware that temperature is a environmental condition as it is the state or quality of the environment we live in which is therefore the reason why the most appropriate choice will be option 2.

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Whats that yellow light bulb shaped thing between the dendron and axon? For reference this is sensory neurons biology gcse

Whats that yellow light bulb shaped thing between the dendron and axon? For reference this is sensory

Answers

Answer:

The yellow light bulb shaped thing you are referring to is likely the cell body, also known as the soma or perikaryon.

Explanation:

In a sensory neuron, the cell body is located in the dorsal root ganglion (DRG) just outside the spinal cord. It contains the nucleus and other organelles that are necessary for the neuron to carry out its metabolic functions. The dendrites, which are responsible for receiving incoming signals from other neurons, extend from the cell body. The axon, which carries outgoing signals away from the cell body, also extends from the cell body.

References:

Carlson, B. M. (2014). Human embryology and developmental biology. Elsevier Health Sciences.

Kandel, E. R., Schwartz, J. H., & Jessell, T. M. (2000). Principles of neural science. McGraw-Hill, Health Professions Division.

Purves, D., Augustine, G. J., Fitzpatrick, D., Hall, W. C., LaMantia, A. S., McNamara, J. O., & White, L. E. (2018). Neuroscience (6th ed.). Sinauer Associates.

Shepherd, G. M. (Ed.). (2003). The synaptic organization of the brain (5th ed.). Oxford University Press.

What is the macroscopic work done on the block by friction during this process?.

Answers

Since the floor has friction, the work done by the block by friction is the normal force times the coefficient of kinetic friction times the distance.

Recent research on Arabidopsis has shown that florigen is probably ________.
a) A hormone that promotes flowering
b) A disease-resistant gene
c) A type of photosynthetic pigment
d) A neurotransmitter in the brain

Answers

Recent research on Arabidopsis has shown that florigen is probably

a) A hormone that promotes flowering


When there is little to no oxygen available, how do cells release stored energy?

Answers

Answer: Cellular respiration is the process in which cells break down glucose, release the stored energy, and use it to make ATP.

or

Fermentation. Some organisms are able to continually convert energy without the presence of oxygen. They undergo glycolysis, followed by the anaerobic process of fermentation to make ATP.

Explanation:

I got two answer so this is the best I can do :)

Answer:

by Cellular respiration

Explanation:

Cellular respiration is a  place in the cells of organisms to convert chemical energy from oxygen or nutrients into adenosine triphosphate which is the main carrier for energy in cells. so this is how cells release stored energy to the body when there is no oxygen.

What is the difference between inorganic and organic compounds?

A.
Organic compounds are produced naturally and inorganic compounds are human-made.
B.
Organic compounds contain ionic bonds and inorganic compounds contain covalent bonds.
C.
Organic compounds contain carbon-hydrogen bonds and inorganic compounds do not.
D.
Organic compounds are beneficial to the environment and inorganic compounds are not.

Answers

Answer:

A.

Explanation:

Organic compounds are something that is produced naturally and found in natural areas.

Inorganic compounds are made by humans and can not be found again naturally.

Positive feedback mechanisms are useful for which of the following situations?
A. Modulating a stimulus to stay within a defined range ·
B. Modulating a stimulus to move toward an endpoint
C. Amplifying a stimulus to move toward an endpoint
D. Amplifying a stimulus to stay within a defined range

Answers

Positive feedback mechanisms are useful for amplifying a stimulus to move toward an endpoint. Therefore option C) is the correct choice of the given options.

What is a positive feedback mechanism?

A positive feedback mechanism is a type of feedback loop in which the output of a system increases or amplifies the effects of the original stimulus. In other words, when the response to the stimulus goes in the same direction as the stimulus, a positive feedback mechanism occurs.

This type of mechanism is often used to promote changes that are self-perpetuating, reinforcing or accelerating. Positive feedback mechanisms amplify a stimulus to move toward an endpoint and can cause rapid changes in a system. An example of a positive feedback loop in human physiology is the mechanism that governs the contraction of the uterus during childbirth.  

Therefore, the correct choice of the given options is C. Amplify a stimulus to move toward an endpoint.

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Why is secondary succession less successful in tropical rainforests?

Answers

Well maybe because they are way more complex and completely rebuilding one would take a long time. And since it takes such a long time other things can happen like deforestation

What level of organization is shown in the image​

Answers

A a gente não tem como una cena de inglês para português de inglês e

Macarthur (1958) identified the locations of warbler activity and he found that the birds were using different parts of the habitat in different ways. this is an example of ___.

Answers

In this case, the warblers are utilizing different parts of the habitat in different ways, indicating a division of resources or space. This allows the warblers to avoid direct competition and coexist within the same environment.

Based on the information provided, the example you mentioned, where Macarthur (1958) identified the locations of warbler activity and found that the birds were using different parts of the habitat in different ways, is an example of niche partitioning.

Niche partitioning refers to the process in which different species or individuals within a species divide and specialize in the use of different resources or habitats in order to reduce competition and coexist.

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Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called *
1. autotrophs
2. producers
3. decomposers
4. omnivores

Answers

decomposers such as vulcher birds

Answer:

decompose

Explanation:

Name the stages of the life cycle of a sponge.

Answers

Answer:

vegetative growth phase, gemmulation, cryptobiosi, the hatching of gemmules, regeneration

where does digestion of food begin​

Answers

It starts in the mouth. You start to chew in which the glands that produce saliva make it easier to send down the esophagus

Which statement is true about viruses?
O They are more complex in structure and function than bacteria
O They are eukaryotic cells
O
They consist of a nucleic acid surrounded by a protein coat
о O
They are usually not pathogenic

Answers

Answer:

option C is correct

Explanation:

virus are made up of nucleic acid and surrounded by protein coat

cnidarians are able to capture prey with the aid of _____, harpoon-like organelles that are often tipped with neurotoxins.

Answers

Cnidarians are able to capture prey with the aid of nematocysts, harpoon-like organelles that are often tipped with neurotoxins.

Any member of the phylum Cnidaria (Coelenterata), which is made up of more than 9,000 living species, is referred to as a cnidarian or coelenterate. Corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans are examples of cnidarians, which are mostly marine organisms. Four classes make up the phylum Cnidaria: Cubozoa (cubozoans), Anthozoa (anthozoans), Scyphozoa (scyphozoans), and Hydrozoa (scyphozoans). Numerous characteristics among cnidarians are universal, supporting the idea that they originated from a common source.

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100 POINTS ASAP- hardy Weinberg problem, please solve for all of the frequency's!

100 POINTS ASAP- hardy Weinberg problem, please solve for all of the frequency's!

Answers

Answer:

q^2 = 0.0025

q ≈ 0.05

p ≈ 0.95

p^2 ≈ 0.9025

2pq ≈ 0.095

Explanation:

5 star ples :)

What can you conclude is one limitation of the arrangement of glucose molecules that gives chitin and cellulose their strength?

What can you conclude is one limitation of the arrangement of glucose molecules that gives chitin and

Answers

Answer:

It cannot be digested and, therefore, provides little nutritional value

Can someone PLEASE help me re phrase my answer? [Ill give brainliest]


Question: In the Northern Hemisphere, climate scientists observe seasonal changes in carbon dioxide concentration with the highest levels measured in May and the lowest levels measured in October. Hypothesize how photosynthesis can affect these changes. Explain your answer in three to five sentences.


answer: Photosynthesis is greatly responsible for the fluctuation of carbon dioxide concentration in the atmosphere because photosynthesis is the process where carbon dioxide gas is used in large amount. If the vegetation occurs higher in the season, decrease will occur in the carbon dioxide concentration of the atmosphere while on the other hand, if the less vegetation occur then there is higher amount of carbon dioxide concentration in the atmosphere.

Answers

Answer:

Photosynthesis is a process in which carbon dioxide gas is used in copious amounts, thus being greatly responsible for carbon dioxide concentration in the atmosphere. If there is more vegetation in a season, the concentration of carbon dioxide will decrease, while if there is less vegetation in a season, the concentration of carbon dioxide will increase

Explanation:

The process of the formation of food by trapping the sunlight with the help of chloroplast is called photosynthesis.

These are the following which are used in process photosynthesis:-

Carbon dioxideWaterSunlight

Photosynthesis is greatly dependent on the amount of carbon dioxide concentration in the atmosphere because photosynthesis is the process where carbon dioxide gas is used in large amounts.

If the vegetation occurs higher in the season, the decrease will occur in the carbon dioxide concentration of the atmosphere while on the other hand, if less vegetation occurs then there is a higher amount of carbon dioxide concentration in the atmosphere.

Hence, the larger the amount of carbon dioxide more the yield from photosynthesis. In some cases, the high amount of carbon dioxide also acts as a poison.

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FILL THE BLANK. the concept of __________ argues that women's sexuality may be less strongly felt and more fluid than men's sexuality.

Answers

The concept of "sexual fluidity" argues that women's sexuality may be less strongly felt and more fluid than men's sexuality. This term refers to the idea that sexual orientation and desires are not fixed, but rather can change over time or in different contexts.

This concept challenges the traditional view of sexuality as a binary between heterosexual and homosexual, and recognizes the complexity and variability of human sexuality. It is important to note that this concept is not meant to generalize all women's experiences, but rather to acknowledge the diversity and individuality of sexual expression.

So, the concept of "sexual fluidity" argues that women's sexuality may be less strongly felt and more fluid than men's sexuality.

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Photosynthesis uses all of the following____ except
A carbon dioxide
B chemical energy
C light energy
D water

Answers

Answer:

The answer is B

Explanation:

It uses carbon, light, and water but not chemical because it doesn't produce.

Cow fur is intertied in a co-dominant pattern. If a Roan Cow (red and white hair) is crossed with a red haired cow, what are the chances that there will be an offspring with only red hair?

Question 7 options:

Answers

Answer:

50%

Explanation:

Try punnett squares. Say red and white is RW, and red haired is RR.

    R      R

R  RR    RR

W  RW    RW

Now this isn't the most neat punnett square but it works.

Answer:

h

Explanation:

What is photosynthesis? where does it take place in a plant and what products are produced as a result?

please help me with this question

Answers

Answer:

Photosynthesis is when a plant makes food for itself and releases oxygen.

Explanation:

Photosynthesis takes place in the chloroplast of a plant cell, the plant absorbs the light from the sun, takes in carbon dioxide (CO2), and absorbs water from either water on the leaves, or ground water soaked up by plant roots. The light, water, and carbon dioxide get turned into glucose (plant sugar) and oxygen. For humans, they take in sugar and oxygen, and using cellular respiration, they turn the oxygen and sugar into carbon dioxide.

50,880,000,000,000 in scientific notation

Answers

Answer:

5.088⋅10^10

Explanation:

First, we will put a decimal point at the end of number 50880000000.

In order to write number 50880000000. in scientific notation we need to move the decimal point from its current location (black dot) to the new position (red dot).

5.0880000000.

So, we need to move decimal point 10 places to the right.

This means that the power of 10 will be positive 10.

Now we have that the

Number part = 5.0880000000 ( which can be written as 5.088 ) and

Exponent part = 10

1. How does adaption help the animals?

Answers

Answer:

Explanation:

A sobrevivir

If T = tall and t = short what will be the physical appearance of the offspring in the cross below
A. they will all be tall
B. they will all be medium height
C. they will all be short
D. some will be tall some will be short

Answers

Answer:

D if both are heterozygous A if only one is heterozygous and or all are homozygous

Explanation:

Letter to Government regarding Solutions to Fl ecologiral issues. Help me please I need to submit it before 12

Answers

To the government, a formal letter describing suggested solutions to ecological issues should be addressed.

Environmental and ecological issues are issues that affect the environment and its ecosystems. These problems frequently concern the interplay of human activities with the environment. It has negative impacts on the balance and efficiency of ecosystems. Environmental laws can be passed to resolve them.

A formal letter is a kind of written communication that follows a precise format and tone. It is typically used for official or professional purposes, such as in business, academia, government, or legal settings.

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what elements would you expect to lose one electron

A. Potassium
B. Sodium
C. Fluorine
D. Chlorine ​

Answers

Answer:

Sodium

Explanation:

The cation produced in this way, is called the sodium ion to distinguish it from the element. The outermost shell of the sodium ion is the second electron shell, which has eight electrons in it.

Hope this helps! <3

How much of a chromosome is copied into rna during transcription?

Answers

Answer: How many genes are copied during transcription?

The stretch of DNA transcribed into an RNA molecule is called a transcription unit and encodes at least one gene. If the gene encodes a protein, the transcription produces messenger RNA (mRNA); the mRNA, in turn, serves as a template for the protein's synthesis through translation.

Explanation:

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