Story #1
Once upon a time, there lived a population of mountain people whose members all had wings but different
types-either bat wings or bird wings. 40% of the population had bat wings and 60% of the population had bird
wings. One day, a storm hit that lasted for several weeks. Those with bat wings were able to fly around and
find food because their wings were water resistant, while those with bird wings were not able to get food
because their feathers were not water resistant and got soaked through. Many of the bird-winged people starved
and did not survive, so their alleles decreased in the gene pool, lowering the frequency of the bird wings in
future generations. Over many generations, the environment had more and more long periods of rain and the
genetic makeup of the population shifted to 10% with bird wings and 90% with bat wings.
What is the trait being described?
What are the variations that exist in this population?
3. How did the event lead to the change in allele frequency?
Alleles?
4. What type of evolutionary mechanism did this story show?
5. Was there an adaptation in this story? If so, identify it.
6. Did the change make the population more or less similar to other populations?
7. Would this increase or decrease reproductive isolation?
Increase or decrease speciation?
8. Did the new population change for the better, worse, or have no effect? Why?

Answers

Answer 1

Answer:

The trait being described is the ability to fly in rainy season.

Explanation:

The trait being described is the ability to fly in rainy season. The people with bat wings and people with bird wings are present in the population. The event lead to the change in allele frequency because the population of people with bird wings die due to starvation. Yes, the bat wings were adapted to that environment so they are able to survive. The change make the population less similar to other populations because population of people with bat wings increases as compared to other population. Yes, the new population change for the better of the ecosystem because the population is able to controls the population of other species in the ecosystem.


Related Questions

Which of the following describes the responsibility of the lymphatic system?


to exchange gases

to provide structure

to protect against illness

to process information

Answers

i guess the answer is to protect against because the primary function of the lymphatic system is to transport lymph, a fluid containing infection-fighting white blood cells, throughout the body.

Which is an example of how the peripheral nervous system helps the body maintain
O Muscles produce keratin so that hair can grow stronger.
O Sweat glands break down the food that is consumed.
O Muscles contract rapidly to produce heat on a cold day.
O The brain recalls information to help take a test.

Answers

Answer:

C. Muscles contract rapidly to produce heat on a cold day.

Explanation:

CORRECT

Answer:

O Muscles contract rapidly to produce heat on a cold day.

Explanation:

Hope this helps

Two parent plants are crossed. The phenotypes of 1,000 offspring plants are shown below. What are the most likely genotypes of the parent plants?
A. ANL/ANL, YGR/YGR for parent 1, and anl/anl, ygr/ygr for parent 2.
B. ANL/anl, YGR/ygr for parent 1, and ANL/anl, YGR/ygr for parent 2.
C. ANL/anl, YGR/ygr for parent 1, and anl/anl, ygr/ygr for parent 2.
D. anl/anl, YGR/ygr for parent 1, and anl/anl, YGR/ygr for parent 2.

Answers

Answer:

C

Explanation:

The data shows that each phenotype occurs about one-fourth of the time. That means that there are about equal numbers of purple-stemmed and green-stemmed plants, and about equal numbers of green-leaf and yellow-leaf plants. Of the four choices, answer A can be eliminated because all of the offspring of an ANL/ANL plant will have purple stems. Answer D can be eliminated because all of the offspring of two anl/anl parents will have green stems.

pls help how do i compare the aspect of an autograft to that of an allograft

Answers

Answer:

The correct answer is - A patient's own tissue - an autograft and tissue from another person - an Allograft.

Explanation:

If the bone or the tissue is transferred from one point of the body to another point of the same person's body, this is called an autograft and is also thought of as "gold standard". It has a low level of risk in comparison to other grafts. It is used for surgical reconstruction.

An allograft is the transfer of the tissues or bone of an individual to the body of another individual of the same species during the surgical process. This type of graft has some risk of compatiblity.

Which correctly shows the temperature relationship among the layers of the Sun?

Answers

Answer:

The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.

Explanation: The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.

Black coat is dominant over white coat in guinea pigs. A homo-zygous black pig is mated with another homo-zygous black pig.
What are the genotypes of the parents?

Question 5 options:
bb and bb
BB and bb
Bb and Bb
BB and BB

Answers

Answer:

BB and BB

Explanation:

BB is a homo-zygous allele and both of the parent guinea pigs are homo-zygous.

A black coat is dominant over a white coat in guinea pigs. The genotypes of the parents are BB and BB. The correct option is d.

What is a genotype?

The terms genotype and phenotype relate to the individual's alleles and the observable traits that are generated from the genotype and determined by the dominance of the alleles, respectively.

For black coat = B

For White coat = b

A homozygous black pig is mated with another homozygous black pig. Homozygous means only one character will be shown in the genotype, that is the dominant and the dominant trait is black, B so, the genotype will be BB and BB. Recessive traits are hidden that do not show, and that is also black.

Therefore, the correct option is d. BB and BB.

To learn more about genotype, refer to the link:

https://brainly.com/question/15016411

#SPJ2

what does hypothesize mean​

Answers

Answer:

to suggest (an idea or theory): to make or suggest (a hypothesis)

Explanation:

hope this helps have a good of your day :) ❤

pllsssssss help i will mark brainliest

Answers

Answer:

EU genes enclosed in nuclei, contain organelles,

BOth rigid cell wall, bacteria, divide by mitosis

Pro genes float fee in cytoplasm

Explanation:

• Different types of molecules do
things in a cell

Answers

Answer:

I dont get what you are trynna ask so..

Explanation:

here are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell's mass.

Answer:

Your cells come from other cells dahhh stup!d

Explanation:

jk it's B

Mark me brainliest!

Which cellular structure is the site of photosynthesis?

ribosome
chloroplast
nucleus
mitochondria

Answers

Answer:

Its b

Explanation:

25POINTS HELP!!!!!!!!!!!!!!!!!!!

Answers

Answer:

kj

Explanation:

uhhhhhh i think the answer is 2+-43

2. Can humans exist if one level of biological organization is absent?​

Answers

Answer: No because each have an important impact on humans.

Explanation:

what kingdom always lives in water

Answers

Answer:

plantae kingdom

Explanation:

plantae kingdom which consists of trees, bushes, vines, flowering plants, ferns and moss among other living organisms. Many plants are aqueous, meaning that they survive and thrive in water whether it be fresh or salt water.

PLZ MARK BRAINLIEST! :)

Answer:

plantae kingdom

Explanation:

6. The milk snake and the coral snake both have red, yellow, and black alternating stripes. In the milk snake, black
stripes separate bands ti red and yellow. In the coral snake, yellow stripes separate black and red bands. The
milk snake is non-venomous, but the coral snake is highly venomous. How are these snakes an example of
coevolution?
The coral snake and the milk snake form a mutualistic symbiosis.
* The coral snake and the milk snake have both evolved to eat the same types of prey.
The coral snake is selectively favored by mimicking the non-venomous milk snake.
The milk snake is selectively favored by mimicking the venomous coral snake.

Answers

Answer: D. The milk snake is selectively favored by mimicking the venomous coral snake.

Explanation: Good luck! :D

Answer:

D

Explanation:

Can you guys please help me with this question?❤️

Answers

Answer:

With less oxygen, the abnormal hemoglobin S gene can cause rigid, nonliquid protein strands to form within the red blood cell. These rigid strands can change the shape of the cell, causing the sickled red blood cell that gives the disease its name.

Answer:

B. Inheriting a specific gene

Explanation:

Sickle cell anemia is a genetic disorder whose gene likely originated in places where illnesses like malaria are common; the sickle cells help prevent people from getting sickened as bad in that case.

Have a good day!

What is the definition of Stabilizing selection, directional selection and disruptive selection (make your sentence short and in your OWN words)

Answers

Answer:

Stabilizing selection is a type of natural selection in which the population mean stabilizes on a particular non-extreme trait value.

directional selection is a mode of natural selection is  an extreme phenotype is favored over other phenotypes.

Disruptive selection describes changes in population genetics in which extreme values for a trait are favored over intermediate values.

Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution?

Answers

Answer:c

Explanation:

c

Embryology is used in evolution because similar structures often also exhibit a common evolutionary origin.

Embryology refers to the discipline that studies the early development of an organism.

Evolution is a biological process associated with descendence with modification, thereby evolutionary close organisms share similar features.

Embryology often evidences evolutionary relationships due to the resemblance between structures found in different organisms.

In conclusion, embryology is used in evolution because similar structures often also exhibit a common evolutionary origin.

Learn more in:

https://brainly.com/question/4207376

What is Earth's position in the solar system?
Closest planet to the sun
Third planet from the sun
Seventh planet from the sun
O Farthest planet from the sun

Answers

third planet from the sun

plz help! What is the specific function of signal cells releasing chemical messages to nearby cells during early embryonic development?

The chemical messages will impact the cells, resulting in change to gene expression.
The chemical messages will facilitate the transfer of mRNA.
The signaling cells will initiate programmed cell death in nearby cells.
The signaling cells will prevent DNA mutation in nearby cells.

Answers

Answer: the chemical messages will impact the cells resulting in change to gene expression

Explanation:

The specific function of signal cells releasing chemical messages to nearby cells during early embryonic development is the chemical messages will impact the cells, resulting in a change in gene expression. The correct option is A.

What is embryonic development?

The growth and formation of the human embryo are known as human embryonic development or human embryogenesis. It is distinguished by early developmental processes in the embryo, such as cell division and cellular differentiation.

The endoderm, mesoderm, and ectoderm are three germ layers that develop throughout this process, known as gastrulation. Different components of the organism will develop from the cells in these three levels.

Therefore, the correct option is A, The chemical messages will impact the cells, resulting in a change in gene expression.

To learn more about embryonic development, refer to the link:

https://brainly.com/question/9599868

#SPJ2

If there were 7 cytocine (C) bases, how many guanine bases will there be?

Answers

Answer:

7

Explanation:

C pairs with G

How is a sanitary landfill different from a dump?

Answers

Answer:

D. It has a clay liner unlike a normal dump

C is your answer :) it only contains human waste such a faeces

DNA is found in every cell of an organisms body.

Answers

This is true

May nilbin be with you

lipid production; increases in liver cells as a response to regular alcohol or barbiturate consumption

Answers

Answer: Lipid production occurs at slower rate.

Explanation:

The ethanol or ethyl alcohol is a hepatotoxic which involves the redox changes in the NADH that results due to the oxidation of the alcohol dehydrogenase enzyme. It affects the metabolism of the lipids, amino acids, carbohydrates and proteins in the body. As the liver cells get engaged in metabolism of regular alcohol or barbiturate. The liver cells get damaged in this process. The ethanol is metabolized into acetaldehyde. So, the lipid production as a metabolite occurs at a slower rate.




Question: How is wind speed and direction related to air temperature?

1. Think about it Imagine a pocket of air over the land ("land air"), and another pocket of air

over the ocean ("ocean air").

A Which air pocket would you expect to heat up more during the day?

Why?

B

Which air pocket would you expect to cool down more at night

Answers

Answer:

The wind  moves from regions of lower air temperature to regions of higher air temperature because of a pressure differential set up by the two air masses

Explanation:

Relationship between wind speed and direction to air temperature:

wind flows from regions of lower air temperature to regions of higher air temperature because of a pressure differential set up by the two air masses.

A.  The land air will heat up more during the day. This is because the land has a lower specific heat capacity than water, hence increases a lot more rapidly in temperature than the sea when the sun comes up.

B.  The air packet over the land will cool down more rapidly at night due to the lower specific heat capacity of land when compared to the sea.

When resources are stable over a long period of time, a species' population can be expected to
O die out.
o increase.
O stay the same.
O decrease.

Answers

The population would increase

In an environment with stable availability of resources, the population can still grow because there are enough resources for this population to survive. Option B.  The species' population can be expected to increase.

This question is related to growth models.

Logistic growth

A growing population that inhabits a limited space is gradually affected by density, rebounding in the multiplication rate.

The population growth per capita rate decreases as population size increases.

The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.

Carrying capacity

Carrying capacity refers to the maximum point at which the environment can support a growing population.

K is a constant. It coincides with the population size when natality rate and mortality rate are equal to each other. This is the equilibrium point.

• If the population size, N, is inferior to K (N<K), the population can still grow.

• When N approximates to K, the population´s growth speed decreases.

• When N=K, the population reaches equilibrium,

• When N is superior to K (N>K), the population must decrease in size because there are not enough resources to maintain that size.

So when the population size exceeds K, carrying capacity makes the population decrease in size.

But if there is a constant availability of resources, the population can still grow because there are enough resources for this population to survive. In this situation, N<K.

When resources are stable over a long period of time, a species' population can be expected to INCREASE. Option B.

You can learn more about growth models at

https://brainly.com/question/16354435

Which of the following is NOT a characteristic of protozoans
a. break down plant matter
b. can cause a disease
c.can live in red blood cells
d. Ingredient in lotion
its a science question

Answers

d i thinkkkkkkkkkkkk

Answer:D

Explanation: Protozoans are a single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an amoeba, flagellate, ciliate, or sporozoan.

Protozoans play important roles in the fertility of soils. By grazing on soil bacteria, they regulate bacterial populations and maintain them in a state of physiological youth— in the active growing phase. This enhances the rates at which bacteria decompose dead organic matter.

What is the name for a full moon that is getting larger getting smaller

Answers

Answer:

That's called a Waning Crescent.

Select the correct answer.
Density is mass divided by volume (d = m ÷ v). Based on the graph, what happens to a fixed mass of water when it is cooled from 4°C to 0°C?



A.
volume increases and density decreases
B.
volume decreases and density increases
C.
volume increases and density increases
D.
volume decreases and density decreases

Answers

Answer:

The answer is A, Volume increases and density decreases

Explanation:

When water is cooled from 4°C to 0°C, the volume of water increases and density decreases. Thus, the correct option is A.

What is the Density of water?

The density of water may be defined as the weight of the water per unit volume, which depends on the temperature of the water. The normal density of water is 997 kg/m³.

When the temperature of liquid goes down, the density of its gradually decreases, as a result of this, the volume considerably increases.

Therefore, the correct option for this question is A.

To learn more about volume and density, refer to the link:

https://brainly.com/question/24650225

#SPJ2

Order of steps to describe the replication of DNA in a cell

Answers

Answer:

basically, step 1 is the second row

step 2 is 3rd row

step 3 is 4th row

and step 4 is the 1st row

Explanation:

Which organelle controls what goes in and out of the cell? *

Mitochondria

Cell Membrane

Answers

The organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option. The cell membrane is the outer protective layer of the cell that does this function.

What is the role of the cell membrane?

The cell membrane is the membrane that acts as the selective barrier for the cell, and through it, substances can enter and exit the cell. When energy is spent for the molecule to move, it is referred to as active transport; when it is not spent, it is referred to as passive transport.

Both eukaryotes and prokaryotes, as well as fungi, have different cell membrane compositions; some have more lipid content, some have less, some have cholesterol, and some don't. The lipids and proteins are arranged in such a way as to maintain cell homeostasis.

Hence, the organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option.

Learn more about the cell membrane here.

https://brainly.com/question/13524386

#SPJ6

Other Questions
Fill in the blanks to complete the rewrite of each sentence into the present progressive tense. 1. El avin despega. El avin... 2. Nosotros hacemos cola en el mostrador. Nosotros cola en el mostrador. 3. Ellos salen a tiempo. Ellos a tiempo. 4. Los pasajeros esperan en la puerta de salida. Los pasajeros en la puerta de salida. 5. Yo leo mi libro favorito. Yo mi libro favorito. 6. Juan y Marisol nadan en el mar. Juan y Marisol en el mar. 7. T vives cerca de mi casa ahora. T cerca de mi casa ahora. Page No.Date :3324 Cosin 4 Go + eces4 300 3 citan60 - tan245) + 5 ecos? 45. PLEASE HELP (stem changing verbs) Help please with #5 please and thanks you GEOMETRY Identify the segment bisector of (FG) . Then find (FG) choose the correct one, please Pluck: Courageous readiness to fight against superior oddsWhich Sentence best fits the above definitionA. He looked in the mirror, sighing as he noted it was time to pluck his eyebrows.B. She felt as if she could pluck the moon from the skyC. The hunter reached the bird, bending down to pluck its feathersD. The small band of Englishmen showed great pluck against the French Does the shadow form by the sun remain the same for the whole day?why? HELP PLS Using the picture below, which wave would have a higher pitch. How many three-digit numbers are divisible by 2,3 or 5? plEASe helP I aM DeSpeRatEGIVE ME THE RIGHT ANSWER what disease that cause the cell membrane to break How did African Americans stand up for their rights during the Revolutionary Era? help and give alot of points What is the sum of 12+14? Use the fraction strip to help.One whole fraction strip is equal in length to one one-half fraction strip combined with two one-fourth fraction strips. One-whole fraction strip is also equal to eight one-eighth fraction strips. A. 28 B. 26 C. 48 D. 68 plss helpppppppppp w,jvkwsvkjbw,vj effvdefv Hemolytic uremic syndrome always results in death.TrueFalse For her cell phone plan, heather pays $30 per month plus $0.05 per month plus $0.05 per text. She wants to keep her bill under $60 per month. Which inequality represents the number of texts, t, Heather can send each month while staying within her budget?A. T> 600B. T You buy butter $3.31 a pound one portion of onion compote requires 1.7 oz of butter how much does the butter for one portion cost round to the nearest cent Can someone tell me if my answer is correct (and correct it if it's not)? What is the area of an EQUALATERAL triangle with a side length of 6? I'm getting 5.19615242, is this right? What is a tree that produces cones called? PLS PLS PLS HELPPP please...