Imagine you are studying a population of finches on one of the Galápagos Islands. You have been recording many of the birds' physical traits, including the length of both wings. You observe that for 80% of individuals measured, the length of the left wing is not significantly different from the length of the right wing (in other words, they are symmetrical). But for about 20% of birds measured, the wing lengths are asymmetrical. This distribution is true from generation to generation. Suddenly, a rare 5-day windstorm takes over the island. After the storm, you spend the next several days netting each bird on the island that survived the storm. You discover that 85% of the birds with symmetrical wings survived the storm, whereas only 5% of the birds with asymmetrical wings did.
a. Propose a hypothesis to explain this observation.
b. If such storms become increasingly common due to changes in climate, how might you expect the population to change over time with respect to wing symmetry? The distribution of symmetrical to asymmetrical will change so that close to 100% of birds will have symmetrical wingspans.

Answers

Answer 1

Answer:

a) The change in the character of an organism relies upon the ability of the adaption on the base of the external change or the environment change, "An organism that is not able to adapt accordingly would not survive and eliminated from the population."

b) In the given case, Symmetric wings are far more suitable for the survivorship as it provides better flight than the organism with asymmetric wings, it is also given that there is 20% of the population have asymmetric wings.

After the storm which is selection pressure, there is the elimination of the entire bird population with asymmetrical wings from the ecosystem so the final frequency would be 100% of the entire population with symmetrical wings.

Answer 2

Natural selection benefits the phenotype that increases the fitness. a) Symetrical wings increase the fitness of finches because they are better to face selective pressures. b) natural selection will favor symmetrical wings.

-------------------------------------

a) Hypothesis:

Symmetrical wings increase the fitness of finches because these type of wings are better to face selective pressures like severe windstorms.

b) If such storms become increasingly common with time, natural selection will favor symmetrical wings by increasing its frequency in the population, while animals with asymetrical wings will decrease to near cero.

Natural selection is an evolutive force that selects beneficial alleles and increases their frequency in the population.

It is the result of the phenotype-environment interaction which determines gene destiny in space and time.

Natural selection results in adaptation, which means the increase of the aptitude phenotype.

Aptitude is the contribution of each genotype to the next generation.  

Aptitude (or fitness) is reflected by the phenotype that results in the survival, fertility, and capability of having a mate.  

Adaptations can be correlated to environmental factors or selective pressures applied by other organisms or habitats.

The selective agent is the environmental trait that determines the differential survival of the phenotypic classes.

The environment influences the probability that each genotype passes its gametes to the next generation.

So in this example,

⇒ The strong storms are acting as selective pressures.

⇒ This selective pressure is modeling the phenotype of finches.

Natural selection favors the phenotype that performs better when facing storms.

⇒ Symmetrical wings are the phenotype that better suits and increases the animal's fitness.

⇒ Hence, natural selection favors this phenotype over asymmetrical wings.

-------------------------------

Realted link: https://brainly.com/question/9830102?referrer=searchResults

                     https://brainly.com/question/2725702?referrer=searchResults


Related Questions

Please help me with #6 please

Answers

Answer:

The sodium-potassium pump system moves sodium and potassium ions against large concentration gradients. It moves two potassium ions into the cell where potassium levels are high, and pumps three sodium ions out of the cell and into the extracellular fluid.

Explanation:

Does passive transport involve an expenditure of much energy? Why or why not?

Answers

Passive transport does not require energy input. An example of passive transport is diffusion, the movement of molecules from an area of high concentration to an area of low concentration. Carrier proteins and channel proteins are involved in facilitated diffusion.

a paragraph about proof

Answers

Answer:

Paragraph proof format

The paragraph proof is a proof written in the form of a paragraph. In other words, it is a logical argument written as a paragraph, giving evidence and details to arrive at a conclusion.

Yeasts reproduce by budding. During budding, a yeast cell splits into two cells. Then the two cells split, making four cells. Determine how many yeast cells would result from 5 buddings.
Show your work.

Answers

Answer:

20 yeast cells would be formed.

Explanation:

You have five cells. Each of those five cells split into two, so now we have 10 cells. Think about it like multiplication, so 5 times 2 = 10. Now we have 10 cells. We know that they split even further, so now those 10 cells become 20 cells. Here is a more simple explanation:

5 cells:

*        *        *        *        *

Now those five cells split up into 2:

*       *        *       *       *

* *     * *     * *     * *     * *

Then those new ten cells split into four:

   *          *            *            *          *

  * *        * *          * *         * *        * *

* * * *    * * * *     * * * *    * * * *    * * * *

Add 4+4+4+4+4 = 20 or 4 times 5 which would also equal 20.

And that is the answer, hope that helped :)

Please help me need this before 9:00 and please use your own word not from google
Hydrogen bonds are important because

Answers

Answer:

Explanation:

Hydrogen bonding reduces extreme temperature shifts near large bodies of water.

Hydrogen bonding allows animals to cool themselves using perspiration because such a large amount of heat is needed to...

Hydrogen bonding keeps water in its liquid state over a wider temperature range than for any other comparable-sized...

1
10
TIME REMAINING
01:53:12
Which statement describes what will most likely occur when warm air cools and the temperature drops to the dew
point?
Air will become more humid.
• Solid ice will form on leaves
Cumulus clouds will disappear.
Water vapor in the air will evaporate.

Answers

Answer:

Air will become more humid

Explanation:

due to the cooling of the air

Answer:

air will become more humid

Explanation:

which subtance is used by plants as a source of food

Answers

Answer:

Glucose

Explanation:

Answer: Glucose

Explanation: Plants make food in their leaves. The leaves contain a pigment called chlorophyll, which colors the leaves green. Chlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis.


Which of these statements best explains how genes and proteins are related?

A. Genes are segments of DNA that code for proteins.

B.proteins are segments of DNA that code for genes

C.genes are the building blocks of proteins

D.proteins are the building blocks of genes ​

Answers

Answer:

The answer is A

Explanation:

I just took it

How do Limiting factors affect biotic potential? Please hurry and help me

Answers

Biotic factors that a population needs include food availability. Abiotic factors may include space, water, and climate. The carrying capacity of an environment is reached when the number of births equal the number of deaths. A limiting factor determines the carrying capacity for a species.

A ball bounces on the ground. How do the ball and the ground act on each other?

Answers

Explanation:

It will continue to fall under the influence of gravitational acceleration, but now, a normal force from the ground surface, opposing the force due to gravity, will act on the ball.This all means that the ball is pushing on the ground with a force greater than its own weight, so acceleration must point upward.

1.75 x 0.65

help me with my homework

Answers

Answer:

[tex]1.75 \times 0.65 = 1.1375 [/tex]

Please Help I NEED IT ASAP! Systems, including cars, require an energy input. Where does a car as a system, gets its energy?

Answers

Answer:

Gas (Chemical Energy)

Explanation:

Cars run on gas. They convert the chemical energy in the gas to motion. This is where the system gets its energy. (Unless your system is the car and it moves beacuse is on a hill in which case gravitational potential energy transfers energy to this system).

describe what happens to the chromosomes in the anaphase telophase. Enter your answer in the space provided.

Answers

During anaphase the chromosomes are separated on the metaphase plate, and pulled apart to opposite poles. After the chromosomes reach the pole that is intended the telophase will began.

humans have __ chromosomes in the nucleus of every cell in our bodys

Answers

Explanation:

In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.

Each nucleotide is composed of three parts. The picture to the right shows a strand of DNA nucleotides linked together. What is the correct name of the molecule indicated?


Answer
F
Deoxyribose sugar

G
Nitrogenous base

H
Phosphate group

J
Hydrogen bond

Answers

Answer:

G. Nitrogenous base

Explanation:

Double-stranded DNA (Deoxyribonuclease) molecules store genetic information. Their 5-carbon deoxyribose sugar, phosphate and one of four nitrogenous bases from which nucleotides derive their name:

Adenine (A)Guanine (G)Cytosine (C)Thymine (T).

The nucleotides on a single strand are bonded together via covalent bonding. Base pairs are formed between nucleotides on opposite strands, due to hydrogen bonding between bases. For instance, Adenine forms double bonds with thymine, while cytosine forms triple bonds with guanine.

HELP PLEASE ill give you brainliest for the first one that's right

Answers

Answer: They don't go through photosynthesizes in winter.

Answer:

Photosynthesis actually occurs in the green parts of the leaf called chloroplasts. These chloroplasts are what give leaves their color. But as leaves start to lose their green colors in fall and winter, they can no longer do photosynthesis. However, there are some deciduous trees, such as aspens, that have green stems

Explanation:

What happened when there was not enough carbon dioxide in the atmosphere to trap the sun's heat about 600 mya?

Answers

Answer:

Decreased Temperatures

Explanation:

Because carbon dioxide traps heat in the atmosphere, a lessening of atmospheric carbon dioxide concentrations would mean that more heat could escape into space. This would result in a net decrease in the Earth's average temperature, assuming other factors remain the same.

Which of the following phrases describe the function of the digestive system?
l. Smooth, muscular tube connects the mouth to the stomach
ll. Muscular action in the esophagus pushed food to the stomach
lll. Structures called the microvilli to increase the surface area of the intestines
lV. Nutrients are made available to the body's cells

A. l and ll
B. ll and lll
C. ll and lV
D. lll and lV

Answers

Answer:

B. ll and lll

Explanation:

The question above is asking for the "function" of the Digestive System. Function refers to how the digestive system actually works.

I is not related to the function of the digestive system. It only describes the "esophagus."

II is called the "Peristalsis." This is one of the functions of the digestive system. This allows the food to move down the GI tract.

III is part of the process called "Segmentation." This is one of the functions of the digestive system. The increase surface area of the microvilli expands 25 times and this allows greater absorption of food.

IV is not related to the function of the digestive system.

Not all genes share the same?

Answers

Answer:

Not all gnes share the same code

Explanation:

Hope this helps!! :)

A rock rests completely still at the top edge of a tall cliff. The rock has - () 17 points
no kinetic energy of potential energy
a lot of kinetic energy but no potential energy
a lot of potential energy but no kinetic energy
both kinetic energy and potential energy

Answers

I think it’s no energy or potential energy

If you were to pour 4 different liquids into a glass and the liquids separated into 4 layers, which liquid would have the highest density?
A.
the second layer from the bottom of the glass
B.
the third layer from the bottom of the glass
C.
the layer at the bottom of the glass
D.
the layer at the top of the glass

Answers

Answer:

the layer at the bottom of the glass

Explanation:

because the last layer consists with so much energy so all the force is in the last layer.

Hi if it is wrong am sorry I tried but if it is right then am happy to help.

Help with these two please

Answers

In order to answer I believe we need to see what person 15 is, if there is a image above or something, that’s the only way I can think of

1. A piece of pure gold (Au) has a volume of 50 cmWhat is its mass?
Density of Some Metals
Metal
Density (g/cm3)
Copper
8.96 (g/cm)
Iron
7.87 (g/cm)
Lead
11.36 (g/cm)
Magnesium
1.74 (g/cm)
Silver
10.49 (g/cm)
Zinc
7.13 (g/cm)
A. 0.38 g
B. 2.63 g
C. 69.3 g
D.950 g

Answers

Answer:

96.5g

Explanation:

Given parameters:

Volume of Au = 50cm³

Density of Au = 19.3 g/cm³

Unknown:

Mass of the  gold  = ?

Solution:

Density is the mass per unit volume of a compound.

 Density  = [tex]\frac{mass}{volume}[/tex]

 Mass  = density x volume

Insert the parameters and solve;

   Mass  = 19.3 g/cm³ x 50cm³  = 96.5g

What is the ability of a cell membrane to allow materials to pass through it
called?
A. Catalysis
B. Synthesis
C. Permeability
D. Polarity

Answers

Answer:

C. Permeability

Explanation:

Answer:

c

Explanation:

Permeability is the amount of water that a cell membrane can allow to pass through it depending on the size of its pores.

A simple diagram of a DNA molecule is shown below. Which of the following is represented by X?
(photo above)

Answers

Answer:

From the diagram X = base pairs

Explanation:

Genetic information stored within DNA is used for growth, reproduction, and cell repair. DNA, deoxyribonucleic acids, are long-chain, helical macromolecules made of specific sequences of covalently bonded monomers called nucleotides.

Nucleotides comprise:

a 5-Carbon deoxyribose sugar, one nitrogenous base (adenine, guanine thymine, and cytosine) and a phosphate group.

Nitrogenous bases cause nucleotides to form hydrogen bonds with other nucleotides as base-pairs. The four types of bases each make the nucleotides  Thymine and Cytosine (pyrimidine bases) along with Guanine,  and Adenine, (purine bases). In base-pair formation, Adenine forms double bonds with Thymine, and cytosine forms triple bonds with guanine.

Identify one organism, one population, and one community

Answers

Answer:

The study of organisms, populations and communities examines how organisms interact with each other and their environment at individual, population and community levels. To characterize these interactions, NEON quantifies and observes interactions among multiple organisms and their environments. By sampling a variety of organisms in aquatic and terrestrial systems, NEON provides data on individual traits, population dynamics and the composition of communities. Integrated with other data collected across NEON sites, the project produces data in the areas of biodiversity, infectious diseases and invasive species.

What do you think the following do when consumed? Protein, lipid,
carbohydrate, nucleic acid.

Answers

Answer:

The functions of nucleic acids have to do with the storage and expression of genetic information. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.

Carbs Provide Your Body With Energy

Glucose in the blood is taken up into your body's cells and used to produce a fuel molecule called adenosine triphosphate (ATP) through a series of complex processes known as cellular respiration. Cells can then use ATP to power a variety of metabolic tasks.

Functions of Lipids in the Body: Storing Energy

The excess energy from the food we eat is digested and incorporated into adipose tissue, or fatty tissue.

Protein makes up the building blocks of organs, muscles, skin, and hormones. Your body needs protein to maintain and repair tissues. Meanwhile, children need it for growth. Studies show that eating protein can also help you lose weight and belly fat while increasing your muscle mass and strength.

8. Passive transport needs ATP.
True
False

Answers

Answer:

The answer is false

Explanation:

The process of forming ATP is? A) Digestion. B) Cellular Respiration. C) Metabolism. D) nutrition.

Answers

Answer:

[tex]\boxed {\boxed {\sf B. \ Cellular \ respiration}}[/tex]

Explanation:

First, let's analyze each process.

A. Digestion

This is the process of breaking down food.

B. Cellular respiration

This is the process of converting glucose and oxygen to carbon dioxide, water, and ATP.

C. Metabolism

This isn't really a process. It's the collection of all the chemical reactions in the body to keep the body functioning.

D. Nutrition

This term also isn't a process. Nutrition involves food, nutrients, and health.

We are looking for the process that forms ATP. Therefore, the best answer choice is B. Cellular respiration

The process of forming ATP is Cellular Respiration. Therefore option B is correct.

The process of forming ATP (Adenosine Triphosphate) is primarily through Cellular Respiration.

ATP is the main energy currency in cells, providing the energy needed for various cellular activities.

Cellular respiration is a series of metabolic reactions that occur in the mitochondria of cells, where organic molecules (such as glucose) are broken down and oxidized to release energy.

This energy is used to synthesize ATP from ADP (Adenosine Diphosphate) and inorganic phosphate (Pi).

Through cellular respiration, cells efficiently convert the energy stored in food molecules into a readily usable form of energy (ATP).

Which powers essential cellular processes, including muscle contraction, active transport, and synthesis of macromolecules.

Therefore option B Cellular Respiration is correct.

Know more about Cellular Respiration:

https://brainly.com/question/29767249

#SPJ6

How is a cell a system , ANWSER IN YOUR OWN WORDS ?

Answers

Explanation: the movement of organelles and other substances within cells. Endoplasmic reticulum

Other Questions
Can you describe how to write 4,638,000,000 in scientific notation Which statement states the central idea of the passage? What is the most effective way for Congress to prevent a president's foreign policy? Can someone write half a page of this? If you do this Ill make another post to give you more points Assuming the acceleration due to gravity on the moon is exactly one-sixth of the acceleration due to gravity on Earth, what is the weight of the object on the moon? If using the method of completing the square to solve the quadratic equation x squared -20x+24=0, which number would have to be added to complete the square May someone help me with this please?!Factor the polynomial function over the complex numbers.f(x)=x4+3x24Enter your answer in the box.f(x)= Slope is - 1 and (0, 2) is on the line You are a medical examiner, and have been given a body to autopsy. What would you do first? *A) Remove the brain and check it for signs of injuryB) Open up the body and begin to examine the internal organsC) Check the outside of the body for injuries, tattoos, marks, look for identificationD) None of these are parts of an autopsy How many valence electrons does Neon have and does it have cations and anions??? could someone plz answer! i need a, b, c Rewrite the following sentence to start with "None of ".The company made two proposals and the board refused both of them. The separation of the ownership of the firm from the control of the firm leads to: ____________a. debt financing. b. an agency problem. c. depreciation. d. equity financing. Which of the following explains why pearl millet was one of the most important crops in China, India, and West Africa?It thrived in dry and hot conditions.It was on a stalk with many clusters.It was easy to plant and grew rapidly.It could be made into enough flour to feed many people. Calculate how much Carbon Dioxide IN GRAMS needs to be absorbed torelease 500g of oxygen during photosynthesis. If you guys like art content, could you guys like my recent post and give me even a follow maybe? Just tryna grow my art account :) Account- littlepicasso._ PLEAS HELP THIS IS IMPOSSIBLE MATCH THE LETTERS TO THE MEANING sorry don't mean too yell Make sure you show all your work for full points.What is y?yz422655 Nepalese farmers complain that there is more pain and less gain in their occupation . what could be the reason .explain The supply of ice cream in town has decreased. Which of the following circumstances most likely caused the reduction?A. A new vendor opened in a neighborhood town.B. The costs of milk and sugar decreased. C. Several competitors shut down for the season.D. Winter began, and snow fell for two weeks.