A zombie apocalypse wipes out almost the entire human species before the zombie threat is eliminated. It appears that only a group of 100 people who were at a family reunion on an uninhabited island survived. They returned to the mainland completely unaware of what had happened to everyone. Answer the following questions regarding the few survivors that now begin to rebuild the human population.

Certain traits will have been lost from the gene pool forever. Some may be obvious, like people with red hair and double jointed thumbs. Others will be less obvious, like the ability to process cholesterol or being allergic to peanuts.

a.) Which of the following best describes the mechanism of microevolution that has altered the human gene pool? Explain.

b.) Despite an abundance of habitat, why will it be difficult for the human species to recover in numbers?

c.) A straggler with green eyes stumbles into the last remaining human outpost. The green eye trait did not exist in the outpost before her arrival, but it does now. What is the name of this mechanism of evolution? Explain.

Answers

Answer 1

Answer and Explanation:

A. Hello. You did not enter answer options. However, we can state that mutation, natural selection and genetic drift will be the microevolution mechanisms that will affect the gene pool of these humans. This is because the new environment and the small number of living beings, will make this population completely susceptible to all these evolutionary factors, which will affect, in different ways, the gene frequencies in a population.

B. As the amount of living beings and human beings has become very small, the world will have a low genetic diversity. This will make it difficult for these humans to adapt to the new environment and will make them more susceptible to possible diseases that will arise in this new environment. This will make these humans more fragile and make it harder for them to multiply.

C. The evolution mechanism is the Gene Flow. Gene Flow refers to the exchange of genetic information between individuals in a population, through the donation of gametes that occur in reproductive processes. In this case, we can consider that the individual with green eyes, upon arriving in the community with individuals without green eyes, began to reproduce descendants, who, upon receiving the gametes responsible for green eyes, began to populate this community with this characteristic.


Related Questions

Which process allows a bacterium to take DNA from its environment and add it to its own genome?

Answers

Answer:

b transformation

Explanation:

In transformation, a bacterium takes up a piece of DNA floating in its environment. In transduction, DNA is accidentally moved from one bacterium to another by a virus. In conjugation, DNA is transferred between bacteria through a tube between cells.

Not really a school question but, do i need a fishing license to buy bait? And can a person under 16 buy fishing bait without a license?

Answers

Haha yes and no………..

do fertilised eggs divide to form a foetus

Answers

For the first 12 hours after conception, the fertilized egg remains a single cell. ... During the first 8 or 9 days after conception, the cells that will eventually form the embryo continue to divide
Your welcomeee❤️⭐️

Which can disrupt the cell cycle?

A. mutation

B. GO phase

C. replication

D. cancer

Answers

Answer:

Mutation can disrupt the cell cycle.

No.3 plzz ...?
Any one ​

Answers

2^n=32

n=5

It doesn't really match up with the options so not sure, my best guess would be either choosing 16 or 4. 16 in case the person calculated as 16 times 2 = 32 and 4 bc its the closest.

mapa mental sobre El origen de las especies

Answers

El origen de las especies, cuya primera edición apareció en 1859, es el libro más conocido de El biólogo británico Charles Darwin. En el libro, Darwin expone su teoría de la evolución:

Afirma que toda la vida en la Tierra tiene un ancestro común. Que la selección natural es el mecanismo principal para la evolución de las especies.

El libro está considerado como una de las obras científicas más importantes de la historia. Causó revuelo en el momento de su publicación porque atribuyó la riqueza de la forma de vida en la Tierra a un proceso mecánico más que a una inteligencia sobrenatural. Es cierto que otros habían sugerido previamente que podría haber cosas como la evolución o la selección natural, pero "El origen de las especies" es el primer trabajo que extrae la mayor consecuencia de estos conceptos.

Aprende más acerca de este tema en https://brainly.com/question/16994577.

Sickle-cell anemia is caused by a mutation that changes the second nucleotide of the codon from GAG to GUG. This results in a change of the amino acid from glutamic acid to valine. If the mutation affected the third nucleotide of the codon and changed GAG to GAU then the amino acid would change from a glutamic acid to aspartic acid. Would you predict this change to have the same effect

Answers

Answer:

This change would be predicted to have less effect compared to the change of the amino acid from glutamic acid to valine.

Explanation:

A conservative mutation is a type of mutation that leads to the replacement of one amino acid by another with similar properties. Both glutamic acid and aspartic acid are similar in size and biochemical properties. These amino acids are acidic dicarboxylic acids (i.e., they contain two carboxyl groups or ―COOH). The side chains of both glutamic acid and aspartic acid are similar, with the exception that glutamic acid contains one additional methylene group in its side chain.

A pesticide tolerance refers to the a. amount of a pesticide that can be applied to a food and how much of the pesticide that is permitted to remain on the food in the marketplace. b. ability of the liver to detoxify a pesticide c. toxicity of the pesticide in the laboratory d. number of pests that are killed by a selected dose of the pesticide

Answers

Answer:

a. amount of a pesticide that can be applied to a food and how much of the pesticide that is permitted to remain on the food in the marketplace.

Explanation:

Pesticides are chemical substances used to get rid of or kill pests that attack crops on farmlands. These pesticides, although help the farmer to get rid of his pest problem and likely have an increase in yield, are dangerous to human and animal health if consumed.

As set up by the Environmental Protection Agency (EPA), pesticide tolerance is the amount or quantity of pesticide chemical that can be applied to a food and how much of the pesticide that is permitted to remain on the food in the marketplace.

Todos los miembros de dicha familia tienen simpatía por las mismas ideas políticas

Answers

Answer:

¿todos los miembros de dicha familia tienen simpatia por las mismas ideas políticas? En las últimas elecciones presidenciales, ¿todos los miembros de dicha familia votaron por el mismo partido?¿Puedes preguntarles cómo votaban los integrantes de esa familia hace veinte años, y hace cincuenta años? ¿Qué ha cambiado? Escribe en tu cuaderno tus averiguaciones

Explanation:

Mi familia tiene diferentes ideales políticos y por eso votaron por diferentes partidos, antes el proceso era manual

En las elecciones actuales les he preguntado a los miembros de mi familia y no todos votaron por el mismo partido político unos creen en uno de los partidos políticos y otros creen en otros. Por lo tanto no todos simpatizan con las mismas ideas políticas

Anteriormente se votaba por medio de un papel escrito, entonces el proceso es mucho más lento y menos automatizado que con maquinas

No, cada familiar tiene una idea política distinta.

-no votaron por el mismo partido político pues siempre algunos presidentes hacen promesas y no las cumplen.

-las votaciones siempre las han realizado por numero de DUI, en institutos o en las calles frente a las alcaldías, tenían que buscar el numero de urna en la cual estaban asignados.

-el cambio a sido la  tecnología y el voto residencial, pues con la tecnología se ha hecho mas fácil el cuento de los votos y el voto residencial a permitido que se les facilite asistir al centro de votación.  

Explain what will happen to your eyes when..
a) you move in a very bright light.
b) you move in a dim light​

Answers

Answer:

For A your pupils will shrink for B your pupils will dilate.

Answer:

When you look at something that is bright, your pupil may shrink.

When you look at something dim, your pupil may get larger.

Explanation:

I think your pupil may get larger if you look at dim light because your eye may have a hard time seeing what's going on. And the opposite may happen when you look at bright light.

what are the types of tropism​

Answers

Answer:

Forms of tropism include phototropism (response to light), geotropism (response to gravity), chemotropism (response to particular substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), traumatotropism (response to wound lesion), and galvanotropism, or electrotropism (response to electric current). 

Tropism is a response to certain stimuli. A positive tropism is moving towards the stimuli, while a negative tropism is moving away from a stimuli.

Positive Phototropism - Growing towards light

Negative Phototropism - Growing away from light

Positive Thigmotropism- Moving towards touch

Negative Thigmotropism- Moving away from touch

Positive Hydrotropism - Growing towards water

Negative Hydrotropism - Growing away from water

Positive Gravitropism - Growing towards ground

Negative Gravitropism - Growing upwards

The last option is tt and tt , im really confused on this one

Answers

Answer:

im pretty sure its the answer you have!

Explanation:

From earliest to latest, the overall sequence of early development proceeds as follows: A) gastrulation → organogenesis → cleavage B) ovulation → gastrulation → fertilization C) cleavage → gastrulation → organogenesis D) gastrulation → blastulation → neurulation E) preformation → morphogenesis → neurulation

Answers

Answer:

C) cleavage → gastrulation → organogenesis

your welcome!

Ở người, alen A nằm trên NST X quy định máu đông bình thường là trội hoàn toàn so với alen a quy định mù màu. Một cặp vợ chồng sinh con, người vợ bình thường nhưng người chồng bị mù màu. Biết không xảy ra đột biến. Theo lí thuyết, tỉ lệ sinh con bị bệnh chiếm bao nhiêu phần trăm?

Answers

Answer:

Explanation:

có 50% khả năng con cái mắc bệnh

y’all i need help please help

Answers

Answer: It is (D) Skin

Explanation: Skin can absorb materials, it also protects our body, it also regulates our body temp.

Skin does all of those things

What does an Electrocardiogram do?
A. Measures the electrical activity of a heart by measuring the current in the skin above it.
B. Pill that contains 3 grams of electrochemical material that helps keep the electrical current in the heart balanced.
C. Measures how much electrical current can be passed through a heart before it stops beating.
D. Restarts the heart by sending an electrical pulse through it.

Answers

Answer:

It actually measures the electrical activity

Explanation:

They are sticky wires that they put on your arms and chest etc

Electrocardiogram measures how much electrical current can be passed through a heart before it stops beating. The correct option is C.

What is electrocardiogram?

An electrocardiogram is a simple test that can be employed to check the rhythm and electronics activity of your heart. Sensors connected to the skin detect the electrical signals generated by your heart every time it beats.

The electrical signals in the heart are recorded by an electrocardiogram. It's a prevalent and painless test for detecting heart problems and monitoring heart health.

An electrocardiogram, also known as an ECG, is frequently performed in a doctor's office, clinic, or hospital room.

It is a heart electrogram, which is a chart of voltage over time of the electrical activity of the heart recorded with electrodes placed on the skin.

Thus, the correct option is D.

For more details regarding electrocardiogram, visit:

https://brainly.com/question/11417041

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What is fermentation

Answers

Answer:

Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes.......I am sure this is helpful for you....And have you a great future.....study well plz....first you read your book.....

50 POINTS!!! The forces of nature are all around us working to shape the surface of our planet. Your task is to search the globe for three examples of land formations shaped by surface events. You will create a presentation to demonstrate your knowledge on this topic. You may choose to create a travel brochure, a vacation scrapbook, or a presentation using software.


Be sure to include the following for each land formation you choose:


a picture (you may hand draw, take photos in nature, or use stock images)

a complete explan

Answers

Answer:

Four major landforms are

A) Mountains      B) hills             C) plains          D) plateaus

Explanation:

I hope this helps you out a little!

Stone Forest, China
Located in China you have blade-like pillars of limestone and sandstone, often over 10m tall. A wonderful landscape that looks parallel to a forest of stone is appropriately named the Stone Forest. The stone forest was constructed in a shallow sea about 270 million years ago. Sandstone and limestone compiled in the bay over time and were ultimately pushed upwards towards the sky. The rocks then began to be molded by wind and water of the surface to create the impressive and grand stone statues they are today.

Giant's Causeway
In Northern Ireland, exist over 40,000 enormous hexagonal black pillars each with some irregular sides, jutting out of the cliff. All of these irregular pillars mesh neatly together appearing as steps. They were established after volcanic eruptions about 50-60 million years ago during the Paleogene Period. It was assumed that the speed at which the lava cooled may have to do with the sizes and shapes of the columns. However, the volcano that was the cause of the columns can no longer be seen today, it has vanished due to erosion.

Ha Long Bay
There stands a glorious terrain formed of limestone pillars and caves located in Vietnam. The rocks have been forged by the sea falling and rising over an estimated 500 million years. The bay also consists of over 1600 islands, a large portion of which remain uninhabited. However, the handful of Islands that contain civilization are fishing villages with towns built on the water. According to the towns peoples stories, it was dragons that created the islands and pillars of rocks to protect Vietnam from invaders.

(I suggest you put this info in a presentation and choose stock photos of each example. I suggest changing a few of the words to reflect you, and just double-check my grammar. Here's the website I got my info from in case you need it http://www.bbc.com/earth/story/20150205-the-15-most-amazing-landforms)
Hope this is useful

Which of the following statements is NOT true?
A. Mutations can be harmful.
B. Mutations are important to evolution.
C. Mutations can be beneficial.
D. Mutations are not part of evolution

Answers

Probably the fact that mutations are not a part of evolution because sometimes adaptions in a population happen because of mutations
The amswer is D because mutations are essential to evolution. Every genetic feature was initially the result of mutation .

While working with cultured mouse cells, a researcher unknowingly treated the cells with a mutagen that causes the deletion or insertion of individual nucleotides in DNA. Subsequently, she isolated and cultured a single cell from this group. She noticed that the progeny of this cell were not producing a certain protein and that this affected their survival. The mutation would be most harmful to the cells if it resulted in ______.

Answers

Answer:

The correct answer is - a single nucleotide insertion near the start of the coding sequence.

Explanation:

Insertion mutations are the mutation that takes place when there is an extra nucleotide is added to the DNA strand during replication and causing the particular protein translation or inhibits the translation if present at the start codon.

It did not allows the translation in this sequence, Deletion, and insertion both are a dangerous mutation that causes the production of unwanted protein or not producing the protein and if this protein is essential for surviving it will lead to cell death.

A bacterial cell wall is composed of: A) A polysaccharide consisting of a single type of monosaccharide unit and cross-linking oligopeptides. B) A polysaccharide consisting of 2 types of monosaccharide units and cross-linking oligopeptides. C) A polysaccharide consisting of 3 types of monosaccharide units and cross-linking oligopeptides. D) Two different polysaccharides and 1 type of oligopeptide, which are cross-linked.

Answers

Answer:

B) A polysaccharide consisting of 2 types of monosaccharide units and cross-linking oligopeptides.

Explanation:

A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.

Also, a unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.

A bacterial cell is made up of peptidoglycan and its main function is to maintain the shape of a cell while preventing it from bursting due to osmotic pressure. Also, the bacterial cell inhibits the passage of larger molecules but allows the free movement (passage) of smaller molecules in the body of a living organism.

Basically, bacterial cell wall comprises a polysaccharide that's typically made up of two (2) types of monosaccharide units and cross-linking oligopeptides.


An eagle carries a fish up 50 m into the sky using 90 N of force. How much work did the eagle do on the fish?
(Work: W = Fd)
40 J
59 J
140 J
4500 J

Answers

Answer:

4500J

Explanation:

As the formula stated above:

work=force×distance

=90×50

=4500J

Which population is more difficult to count during a survey of biodiversity?
O A clumped population
O A uniform population
A mobile population
O A small population

Answers

A mobile population because they’re constantly on the move and are not set in one location like a clumped or uniform population.

Answer:

Mobile population

Explanation: I got it right

Explain the characteristics scientists use when observing organisms and placing them in the six kingdoms .

Answers

Archaebacteria. Archaebacteria are the most recent addition to the kingdoms of organisms.
Eubacteria. Eubacteria are also single-celled bacterial organisms.
Fungi. The Fungi kingdom is recognizable to us as mushrooms, molds, mildews and yeasts.
Protista.
Plants.
Animals.

Anjuli performed an experiment to determine the respiration rate of yeast. She determined this by measuring the
amount of carbon dioxide (CO2) that was produced. Then, she created the following graph.
Her teacher suggested that she redraw her graph as a line graph. Why should she redraw the graph?
• A line graph looks better in a scientific report.
• She was measuring a rate of change.
• She had graphed the wrong relationship.
• Her experiment had many different variables.

Answers

The correct answer is B. She was measuring a rate of change.

Explanation

A linear graph is a type of graph that contains a series of data represented by points joined by linear segments, which allow you to quickly check the change in the trend of the data. Therefore, inline graphs quantitative variables are usually used to see their behavior over time. According to the above, Anjuli had to use a linear graph to express the information in the graph more clearly, because the data that he was using in his graph were quantitative variables. Also, she wanted to express the respiration rate of the yeast per minute. According to the above, the correct answer is B. Ella She was measuring a rate of change.

The cell membrane regulates what enters and leaves the cell, only allowing
certain things to enter or exit. This is called:
A:Selective Permability
B:Homeostasis
C:Osmosis
D:Transport

Answers

Answer:

A)selective permeability

Explanation:

it allows for it to choose ,small particles easily enter and leave the cell unlike large particles

Your answer would be selective permability

why do solvents particles flow into the cell when the initial volume is below 50%

Answers

Answer:

because of it's lower concentration

Lower concentration

Why is the ability to bioluminesce beneficial? signals may be sent out to communicate an interest in mating it can camouflage the underbelly of the fish by lighting it up the same color as the sea surface so that the fish will be almost invisible to predators swimming below food may be found even in the darkest parts of the ocean or at night the light may momentarily distract predators, allowing the organism a chance to escape all of the above

Answers

Answer:

The correct answer is - All of the above

Explanation:

Food is produced at every part of the earth as it may be found even in the parts that are darkest at night or at the part of ocean. Communication between mates can be done by signals that may sent to show interest in mating, Camouflage is the way to escape or hide by use of the light that may momentarily distract predators as it can camouflage the underbelly of the fish by lighting it up the same color of as the sea surface to make it invisible.

state two functions of mucus produced along the alimentary canal​

Answers

Answer:

helps reduce intestinal inflammation by decreasing bacterial interaction with intestinal epithelial cells.

Can someone answer both pls

Answers

Answer:

Not clear picture!!!!!!!!

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