Please Help Quick ASAP Hurry
A species of squirrels were split in half when a tornado swept through the forest.
Half of the squirrels ended up in an environment near a pond. The other half ended up on rocky ground. They were too far apart to reunite. Ten years later, both of the squirrel populations' allele frequencies had changed to be more fit for their environments. The pond squirrel population and the rocky ground squirrel populations could no longer mate together.

What was the cause of this speciation?
A. geographic isolation
B. gene flow
C. a decrease in the mutation rate
D. a change in climate

Answers

Answer 1

Geographic isolation was the cause of this speciation (Option A). It led to reproductive isolation.

What is speciation?

Speciation refers to the separation of one species into two or more species due to the emergence of divergence.

The reduction in gene flow due to geographic isolation leads to the emergence of reproductive barriers.

In consequence, these reproductive barriers can be understood as a consequence of geographic isolation.

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Related Questions

How do you calculate wave speed? a. Divide the wave period by the wavelength. b. Divide the wavelength by the wave period. c. Divide the wave height by the wave period. d. Multiply the wavelength by the wave height. Please select the best answer from the choices provided

Answers

Answer:

B.  Divide the wavelength by the wave period

In a grassland ecosystem, a prolonged drought has caused depletion in food sourſes for a species of rabbit
Which of the following conditions must be met for evolution by natural selection to occur within the rabbit
population?
Some individuals in the rabbit population must evolve traits that improve their survival chances.
Some rabbits must acquire mutations that create genetic variation within the population.
Rabbits must be capable of producing more offspring than are able to survive.
Rabbits must decrease their rate of reproduction to decrease competition for resources.

Answers

Some individuals in the rabbit population must evolve traits that improve their survival chances

In the grassland ecosystem, rabbits must be capable of producing more offspring than are able to survive, this condition must be met the evolution by natural selection to occur within the rabbit population. Thus, the correct option is C.

What is Natural selection?

Natural selection is the process through which different populations of living organisms adapt and change according to the surrounding environment. Individuals in a population are naturally variable with respect to environmental conditions, meaning that they are all different in some ways or the other. This variation in population means that some of the individuals have traits which are better suited to the environmental conditions than that of others.

Rabbits must be capable of producing more offspring than they are able to survive. This conditions must be met for the evolution by natural selection to occur within the rabbit population.

Therefore, the correct option is C.

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Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.
Site 1: "Structures of the Nervous System: The Neuron"

What is the function of dendrites? (Site 1)

Answers

Answer:

The dendrites are important for receiving action potential or other stimulation in order for neurons to become activated. Dendrites are electrical signals that receive extensions of the cytoplasm. These signals come in two fundamental forms: inhibitory and excitatory.

Explanation:

just did it on Edge hope this helped :)have a great life bros

The function of dendrites is to receive signals and information from other cells. They have roots like structure.

What are dendrites?

Thin structures that emerge from the cell bodies of neurons are called dendrites. A neuron gets information from neighboring cells on its dendrite, or "tree branch." Like tree branches, dendrites branch as they advance toward their tips.

In order for neurons to become engaged, the dendrites are crucial for receiving action potentials or other types of stimulation. Electrical impulses are received via dendrites, which are cytoplasmic extensions. The two basic types of these signals are inhibitory and excitatory.

Therefore, dendrites have the ability to take in signals and data from other cells. They have structures-like roots.

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two characteristics of arteries and veins.​
If anbody answer it will make them brainlist

Answers

Featured snippet from the web
Located throughout the body, arteries transport nutrient-rich, oxygenated blood to organs and tissues. Arteries are more muscular and have smaller, rounder lumens (internal spaces) than veins. The artery lumen has a wavy endothelium, or inner lining, due to the configuration of elastic tissue beneath it.
The arteries carry oxygenated blood to all body parts, where as veins carry the deoxygenated blood to the heart.

im feeling nice today so this is for anybody (execpt people who have a lot of points) i dont need it 50 50 for two people .Have a nice day!

Answers

Answer:

Your Awesome

Explanation:

Thanks lol

Answer:

Thanks!

Explanation:

Can u please mark me brainliest? Im desperate.

Have a great day!
#Equestrians

WILL MARK BRAINLIST IF CORRECT PLEASE ANSWER FAST!!!!! _______________ has lots of nutrients but does NOT allow water or air to pass through

Answers

Answer:

the skin on your body

Explanation:

because it is a tough cover it protects the body in many ways,thus it's water proof.

Stars with the greatest mass will eventually become

Answers

Answer:

Stars with the greatest mass will eventually die because the greater the mass of the star, the sooner they'll die. Lower massed stars live longer than the sun, and higher massed stars live shorter than the sun. They will become into a red giant after wards when its fuel is gone. Hope this helped!

What causes smog in L.A. and in Mexico City? Describe at least factors.


Describe one change to factories and power plants intended to reduce air pollution.


Describe one change to automobiles and buses intended to reduce air pollution.


Describe one way that commuters can now reduce air pollution.



What is still a major challenge to reducing air pollution in Mexico City?

Answers

What causes smog in L.A. and in Mexico City? Describe at least factors.

The smog is trapped in the valley and cannot be carried away by wind.

Describe one change to factories and power plants intended to reduce air pollution.

Reducing toxic emissions from industrial sources, reducing emissions from vehicles and engines through new stringent emission standards and cleaner burning gasoline; and addressing indoor air pollution though voluntary programs.

Describe one change to automobiles and buses intended to reduce air pollution.

Using fuel efficient vehicles, or electric vehicles.

Describe one way that commuters can now reduce air pollution.

Choose a cleaner commute, share a ride to work or use public transportation. Combine errands and reduce trips. Walk to errands when possible. Avoid excessive idling of your automobile.

Prepare your own version of a leaflet on integrated pest management
rice production. Include in your leaflet how to formulate local remedies to control
some insects using some available low-cost substances and plant extract. ​

Answers

Answer:

Our experimental results show that a proper manner of an integrated pest management (IPM) cut pesticide use without any yield penalty.

Nitrogen is an element found in nucleic acids. Where else is nitrogen found?

A. proteins
B. lipids
C. carbohydrates​

Answers

Answer:

A

Explanation:

nitrogen is a fundamental source of amino acids. And amino acids are building blocks of proteins

Which statement is NOT true about the role of glucose?
1.it is produced during photosynthesis
2.it it s food source for the plant
3.it is a waste product of photosynthesis
4.it is converted into ATP

Answers

Answer:

The statement "It is a waste of product of photosynthesis" is incorrect about the role of glucose.

NEED HELP!!!

A. What are the options for surviving a very cold winter?
B. What protective measures might be required to keep cells alive during periods of torpor?

Answers

Um- where is the question?-

explain how crossing over provides evidence to support the claim that meiosis increases genetic variation

Answers

Answer:

at each chiasma, the chromosomes will break and then rejoin,trading some of their genes

Explanation:

Which of the following describes the dependent variable?

A. The group in which conditions were not changed

B. The variable that is being manipulated by the experimenter

C. The variable that is observed or measured the the experimenter

D. The observation that the experimenter made that started the experiment

Answers

Answer:

C.) The variable that is observed or measured by the experimenter.

Explanation:

The dependent variable is the variable that is being measured or tested in an experiment.

For example:
In a study looking at how tutoring impacts test scores, the dependent variable would be the participants' test scores, since that is being measured.



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Why do cells have a maximum diameter of slightly over 100 micrometer

Answers

Cells have a maximum diameter of slightly over 100 micrometer due to chemicals or mutation.

Why cells have a maximum diameter of slightly over 100 micrometer?

Prokaryotic cells diameter ranges from 0.1 to 5.0 micrometers (μm) which are smaller than eukaryotic cells, which have diameters ranging from 10 to 100 μm.

Some cells have attain the diameter of over 100 micrometer which may be due to mutation or exposure to chemicals so we can conclude that Cells have a maximum diameter of slightly over 100 micrometer due to chemicals or mutation.

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ASAP Choose ALL that apply for neap tides

Lesson 3. 01

Moon, Sun, and Earth are in alignment

Moon and Sun are at right angles to the Earth

Gravity of the Sun and Moon work against each other

Smaller than normal range of high and low tides.

Answers

Answer:

moon, sun, and earth are in alignment

In a Punnett square for a two-factor cross, is it possible for all of the offspring to be identical?
Explain why or why not.

Answers

no because they would need to be a capital not lowercase and then that would turn out as the dominant trait i think

In a Punnett square for a two-factor cross, it is not possible for all of the offspring to be identical.

The Punnet square simply refers to a square diagram that's used for the prediction of the genotypes of a breed. The diagram is usually used by biologists in order to determine the probability of the genotype of an offspring.

For example, if there's a dominant and recessive genes represented as B and b. When they're crossed, the offsprings that are gotten will be BB, Bb, Bb, bb.

From the above, it shows that in a Punnett square for a two-factor cross, it is not possible for all of the offspring to be identical.

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Imagine you are a paleontologist trying to find the "missing link" between different species. In three to five sentences, create a fictional narrative about your discoveries, describing: 1) what two species, mythical or real, you are studying, 2) what evidence you have linking these species, and 3) what evidence you have to define different correlations and causations that support your hypothesis

Answers

The "missing link" between different species. man and chimpanzee,

the evidence linking these species are their similar body structures, behavior and intellect.

Missing link

The two species studied are men and  chimpanzee, the evidence linking these species are their similar body structures, behavior and intellect.

The evidence for this discovery is that in Ethiopia in 1974 it was named Lucy (in honor of the Beatles "Lucy in the Sky with Diamonds"). Its bones date back to 3.2 million years ago. The brain was small and its height was no more than one meter.

It was classified among the Australopithecus afarensis and for a long time held the post of the grandmother of humanity.

In this question, We imagine that we are paleontologists trying to find the "missing link" between different species. man and chimpanzee, we created a fictional narrative about this discovery.

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3. Describe the variation between individuals of giant tortoises found on the
Galapagos Island, and explain why.

Answers

Lonesome George lived in the Galapagos, a chain of volcanic islands off the coast of Ecuador, in South America—islands that forever changed our understanding of the natural world. While visiting the Galapagos in 1835, British naturalist Charles Darwin observed local plants and animals. He became fascinated by species that seemed related to ones found on the mainland—but that also had many physical variations unique to different islands.
Over time, Darwin began to wonder if species from South America had reached the Galapagos and then changed as they adapted to new environments. This idea—that species could change over time—eventually led to Darwin’s theory of evolution by natural selection.

Which of the following is NOT a structural adaptation?
camouflage
mimicry
spikes on a hedgehog
a squirrel climbing up a tree

Answers

Answer:

Camoflauge.

Explaination:

Camouflage is when a species changes to resemble its surroundings to protect itself.

Structural adaptations are physical features of an organism such as spikes on a hedgehog.

Since camoflauge is not a physical feature, it is therefore not a structural adaptation.

Hope this helps!

Which change would likely result from proliferation?
A. an organism's cells divide once adding mass to the organism.
B. an organism's cells multiply once adding mass to the organism.
C. an organism's cells multiply many times adding mass to the organism.
D. an organism's cells divide many times adding mass to the organism.

Answers

The change that bring about proliferation is D. an organism's cells divide many times adding mass to the organism.

Proliferation can be regarded as physiological process of cell division which happens in almost all tissues, which brings about  increase of the number of cells.

It is the reproduction as well as multiplication of similar forms, this form could be cells or morbid cysts.

Instance of this is in cell division in many times.

Therefore, option D is correct

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Answer:

C. an organism's cells multiply many times adding mass to the organism.

Explanation:

After reading, it was C.

Which of the following best describes invertebrates and vertebrates? Invertebrates have a backbone and vertebrates do not. Invertebrates do not have a backbone and vertebrates do. Invertebrates and vertebrates both have a backbone. Invertebrates have a backbone in the front and vertebrates have one in the back.

Answers

Answer:

Explanation:Invertebrates are animals without spines, while vertebrates have a spine. Invertebrates are sometimes (mistakenly) thought of as primitive because of their lack of developed organs. Their simple internal systems include respiratory systems such as gills or trachea and they often use an open circulatory system to pump their blood. As invertebrates lack an internal skeletal

structure, they sometimes have an external skeleton that protects their soft bodies called an “exoskeleton.” In general, invertebrate success often comes from their ability to reproduce extremely quickly, unlike many vertebrates who take years to become fully grown.

Vertebrate animals, on the other hand, have a spine that develops from a notochord they possess as an embryo. They also have defined internal systems like complex respiratory structures, a closed circulatory system and sensory organs that build the nervous system. Vertebrates tend to be larger than invertebrates, thanks to their backbone, which allows their bodies to grow larger and move faster than many invertebrates.

The statement that best describes invertebrates and vertebrates is invertebrates do not have a backbone and vertebrates have a backbone.

What do you mean by invertebrates?

Invertebrates may be defined as any animal that lacks a vertebral column, or backbone, in contrast to the cartilaginous or bony vertebrates.

Invertebrates do not possess a backbone and an internal skeleton, but they have an exoskeleton. They possess an open circulatory system. While on the other hand, vertebrates possess a backbone and an internal skeleton, but they do not possess an exoskeleton. They possess a closed circulatory system.

Therefore, the statement that best describes invertebrates and vertebrates is invertebrates do not have a backbone, and vertebrates have a backbone.

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what are the technicial terms for organisms that make their own food , and organisms that obtain food through eating other living thing ?

Answers

producers and consumers im pretty sure its been some time though

Why are there so few third-level consumers and how does this fit with the energy pyramid? Group of answer choices because there is less energy available at the bottom of the pyramid because of the energy and heat loss at each level of the pyramid because they use the most energy competing for food in the pyramid because they have the fewest sources of food for energy in the pyramid

Answers

Answer:

because of the energy and heat loss at each level of the pyramid

Explanation:

Producers (photosynthetic beings) are the ones who are at the base of the food pyramid, and for this reason, they are the ones with the most energy availability. ,

When a primary consumer feeds on producers, the energy stored in organic compounds is transferred to him. Consumers then use ingested organic matter to produce energy, which, in turn, is used to carry out some processes for their survival. Another part of the substances ingested is lost in feces and urine.

When serving as food for another organism, primary consumers transfer their energy to that secondary consumer, and so on. Therefore, at each level of the pyramid, less energy is passed, and then less energy is available, the more difficult and competitive it becomes for subsequent consumers.

Describe the levels of organization in the body.

Answers

Cells are the smallest living part of organisms. When groups of similar cells come together, they form tissues. Groups of tissues that work together to perform a function are called an organ. Groups of organs that work together to perform a job are called an organ system. The body is made up of multiple organ systems.

Location plays a role in wetland type, but is not the sole determining factor. Please select the best answer from the choices provided T F.

Answers

The statement location plays a role in wetland type but is not the sole determining factor is true.

What do you mean by Wetland?

Wetlands are areas where water covers the soil or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season.

The characteristics of the fate line depend on the location primarily on its latitude and longitude. The direction and movement of the sun also affect the wetland types.

Therefore, The statement location plays a role in wetland type but is not the sole determining factor is true.

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Answer:

True!

Explanation:

What typically happens to the physiological symptoms of a panic attack when an individual goes through the fear of fear cycle of panic?.

Answers

The symptoms get worse due to positive feedback (i.e., the fear cycles generate more fear). It increases the first stimulus.

What is positive feedback?

Positive feedback is a process where a given outcome stimulates the generation of a result for the first stimulus.

Positive feedback occurs during a process known as a feedback loop capable of increasing the first consequence of a stimulus.

In a process involving positive feedback, the stimulus increases the production of the first disturbance.

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What do each of the leaves of a four leaf clover stand for.

Answers

Answer:

The first leaf represents hope, the second stands for faith, the third is for love and the fourth leaf brings luck to the finder.

Explanation:

The untreated sewage discharged by cruise ships is _______. a. blackwater b. greywater c. solid waste d. not considered pollution please select the best answer from the choices provided a b c d

Answers

The untreated sewage discharged by cruise ships is Blackwater. So, the correct option is A.

What do you mean by Untreated Sewage Discharge?

Untreated sewage discharge may be defined as sewage that has not passed through a treatment system. This is the sewage that is directly discharged from a toilet into a waterway.

Blackwater refers to any waste from toilets or urinals which is directly discharged into the waterway without any treatment. It is the major cause of water pollution as well.

Therefore, the untreated sewage discharged by cruise ships is Blackwater.

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The outer layer of bone _____.

is a thin membrane
is thick and hard
looks like a sponge
makes red blood cells

Answers

i thought it was a thin membrane
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Don and Linda would like to replace the hardwood flooring in their dining room. The flooring sells for $15.75 a square foot installed. The room size is 15 feet wide by 22 feet long. They can make a 20% down payment but will need to finance the rest at 12% for 42 monthsa. What is the down payment?b. What is the amount financed?c. What is the monthly payment?d. What is the total finance charge? A. "That year was the first time I saw snow. 1 [played outside) in thewondrous white stuff until my fingers and toes were frozen," wrotethe author.B. "That year was the first time I saw snow. I played in the wondrouswhite stuff (snow] until my fingers and toes were frozen," wrote theauthor.C. "That year [1999] was the first time I saw snow. I played in thewondrous white stuff until my fingers and toes were frozen," wrotethe author.D. "That year was the first time I (the author] saw snow. I played in thewondrous white stuff until my fingers and toes were frozen," wrotethe author. PLEASE HELP AND IF YOU KNOW THE ANSWER LET ME KNOW 20 POINTS The past particle of teach Help!List at least 5 objects would create a good Photogram. Includeexamples of both opaque and transparent objects. A brand new smartphone costs $1200. It decreases in value by 13. 3% every year after its purchase. Which function models the value of the phone x years after its purchase?Question 8 options:f(x)=1. 133(1200)xf(x)=1200(1. 133)xf(x)=1200(0. 867)xf(x)=0. 867(1200)x Which pieces of textual evidence support the inference that the codebook was of high importance? Select 2 options.On several occasions Room 40 received an unexpected but welcome gift when a German codebook was recovered after a sea battle and presented to the British code breakers. One such gift was a codebook from the German ship Magdeburg, a light cruiser that ran aground on an island off of Finland.When Russian ships quickly bore down on the cruiser, the captain of the stranded ship immediately did what all naval officers were taught to do: he ordered his signalman to bring him the ship's codebook so he could throw the book, wrapped in lead covers, into the sea.But before the signalman could deliver the book to his captain, he was killed by Russian guns.When the Russians recovered his body, the sailor was still clutching the codebook in his arms. What does the phrase like fire or the sun when it rises There are 300 seeds in a packet of flower seeds.Each seed will grow into a white flower or a yellow flower or a red flower.The probability of a seed growing into a white flower is 0.6245 of the seeds are expected to grow into yellow flowers.One of the seeds is chosen at random from the packet.What is the probability that this seed will grow into a red flower?(3 marks) Denny bought a boquet f 20 flowers that cost $12 Roses cost $0.75 each Carnatons cost $0.50 each how many roses(r) and how many carnations(c) are in denny's bouget?r+c=200.75r+0.5c=12 Which statement best describes the role of church officials in feudal society? They had little power because they did not have land. They had little power because they did not have knights. They had great power because they influenced peoples actions. They had great power because they controlled peoples education.\ Chapter 4 . Cite evidence of how Jack changes when he dons the face paint (PDF 81-89/ p. 58-64) Jack before face paint Jack after face paint This question has two parts. First, answer part A. Then, answer part B.Part AThomas Edison invented film that moved past light. What happened as a result?A.Sound was matched to film.B.Films became a social event.C.Filmed objects became visible.D.Things appeared to be moving.Part BWhich sentence from the text describes this result?A.A few years later, in 1889, Thomas Edison developed a machine called the Kinetoscope.B.When people watched, it seemed as if filmed objects and humans were moving.C.Only one person at a time could watch the film, but viewers were amazed, and the Kinetoscope soon became very popular. what is the correct definition of a positive self-image. b when people think they are probably better than most others around them.c when people feel good only when they have succeeded at when people view others more positively than themselves. 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