What is a population bottleneck?

Answers

Answer 1

Answer:

A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts or human activities such as specicide and human population planning.

Explanation:

Answer 2

Explanation:

A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts or human activities such as specicide and human population planning.follow me


Related Questions

How is the energy of chemical processes coupled in metabolic pathways?

Answers

Answer:

Energetic coupling of chemical processes in metabolic pathways Biochemical systems couple energetically unfavorable reactions with energetically favorable reactions. These reactions can be part of catabolic pathways where complex substances are broken into simpler ones with the release of energy or anabolic pathways where complex molecules are synthesized with an input of energy.

Explanation:


Which gas is least abundant in Earth's atmosphere? EXTRA POINTS
A .A
B .B
C .C
D .D

Answers

And see is going to be c carbon dioxide

PLEASE HELP! I DONT UNDERSTAND

what is the equation of Photosynthesis and cellular respiration in a chemical formula?

Answers

Answer:

I would type it up, but I decided to insert a picture.

Explanation:

How do invasive species usually affect the availability of natural resources in an ecosystem?

PLEASE HELP ME​

Answers

Answer: Invasive species can harm both the natural resources in an ecosystem as well as threaten human use of these resources. ... Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats.

Explanation:

*15 points* Earth Science
Based on the picture, how many tilting events has this area undergone, and which principle tells us that this area has undergone tilting?

Answers

Just saying it says 8 points ya little baka

I need a definition of representation and diversity

Answers

Answer:

resperation is the the action of breathing.

diversity is a range of different things.

Explanation:

Which of these is a difference between DNA and RNA?
DNA is found in the nucleus; RNA is never found in the nucleus.
DNA consists of five different nucleotides; RNA consists of four different nucleotides.
RNA is double-stranded; DNA is single-stranded.
DNA contains thymine; RNA contains uracil.
In DNA, adenine pairs with guanine; in RNA, adenine pairs with thymine.

Answers

Like DNA, RNA is made up of nucleotides. There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.

Builder a was able to underbid his competitor, builder b, by secretly using a lower grade cement when building swimming pools.both builders used the same design and specifications for the pool. Two years later, the pools made buy builder a began to leak and soon became unusable who is liable for the expense of fixing the pools?

Answers

Answer:

builder A

Explanation:

got it right

Answer:

Builder A

Explanation:

On quizlet

how does the envirment select organisms

Answers

Answer:

The environment "selects" organisms that are better adapted to their environment and thus have a better chance to survive and reproduce. ... Helpful variations accumulate through natural selection, as the organisms that are better adapted to their environment reproduce offspring with the same variations.

Explanation:

# 14 please!!!! will give brainliest

Answers

Answer:

Within the bone marrow, all blood cells originate from a single type of unspecialized cell called a stem cell. When a stem cell divides, it first becomes an immature red blood cell, white blood cell, or platelet-producing cell.

Explanation:

I am not sure if this helps you....

how does fertilizer affect the quality of crops?​

Answers

Answer:

Fertilizers replace the nutrients that crops remove from the soil. Without the addition of fertilizers, crop yields and agricultural productivity would be significantly reduced. That's why mineral fertilizers are used to supplement the soil's nutrient stocks with minerals that can be quickly absorbed and used by crops

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how does fertilizer affect the quality of crops?

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The role of fertilizers in food production is usually underestimated. Fertilizers are food for plants.

Fertilizers replace the nutrients that crops remove from the soil. Without the addition of fertilizers, crop yields and agricultural productivity would be significantly reduced. That’s why mineral fertilizers are used to supplement the soil’s nutrient stocks with minerals that can be quickly absorbed and used by crops.

Put simply – we use fertilizer to:

Provide nutrients not available in the soil.Replace nutrients removed at harvest.Balance nutrients for better. producequality and higher yield.

Convert the DNA strand to mRna, then use the codon chart to translate the codons into amino acids.
DNA → TAC CAT GGA ATT ACT

mRNA →

Amino acids →

I NEED HELP PLEASE

Answers

Answer:

DNA → TAC CAT GGA ATT ACT

mRNA: AUG GUA CCU UAA UGA

Amino acids: met-val-pro-stop

Explanation:


Need help with this!! I’m not good at writing these.

Answers

Answer:

The difference between ethical, and finally scientific questions, are based upon their root word. Such as an ethical question may involve race and heritage, while a legal question may involve anything that involves the law such as court questions and can be resolved by the judge not the jury. Finally scientific questions can involve a question thats mainly based around science such as items that you can test or measure.

What is the name of the bond that is created when two amino acids

Answers

Answer: peptide bonds

Explanation: I think that's the answer.

What does "fishing down the food web" mean?​

Answers

Answer:

Fishing down the food web is the process whereby fisheries in a given ecosystem, "having depleted the large predatory fish on top of the food web, turn to increasingly smaller species, finally ending up with previously spurned small fish and invertebrates".

Which of the following virulence factors would most likely produce an organism that can hide within the host cell,
growing intracellularly?
A)invasins (Type 3 secretion system)
B)capsule
C)IgA protease
D)Opa protein

Answers

The best answer to go with is b

according to darwin’s on the origin of species, what four factors

Answers

Answer:

(1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.

Explanation:

How is drought a limiting factor?

Answers

Answer:

Answer

Explanation:

It cause for disasters like lost of crop which causes no food and starvation. It also causes farms to lose money and thus is limiting farming,the citizens,and even the economy .

What are the effects of cystic fibrosis

Answers

Answer: the effects of cystic fibrosis are thick mucus that clogs certain organs, such as the lungs and intestines etc . This may cause malnutrition, poor growth, frequent respiratory infections, breathing problems, and chronic lung disease.

As a genetic counselor, you advise couples about the possibility of genetic disease in their offspring. This morning you met with an engaged couple, both of whom are phenotypically normal. The man, however, has a brother who died of Duchenne-type muscular dystrophy, an X-linked condition that results in death before the age of 20. The allele responsible for this disease is recessive. His fiancee, whose family has no history of the disease, is worried that the couple's sons or daughters might be afflicted.

Requied:
a. How would you advise this couple?
b. The sister of this man is planning to marry his fiancée's brother. How would you advise this second couple?

Answers

Answer:

a. This couple should not worry.

b. This couple should worry.

Explanation:

a. The man should not be worried. This is because he is normal (phenotypically).

b. They should be worried because the sister of the man can be a carrier of the recessive allele. If she was a carrier, then half of their male children can be affected.

Why may an asthmatic patient produce a wheezing sound and difficulty in breathing​

Answers

Answer:

Wheezing happens when the airways are tightened, blocked, or inflamed, making a person's breathing sound like whistling or squeaking. Common causes include a cold, asthma, allergies, or more serious conditions, such as chronic obstructive pulmonary disease (COPD).

Explanation:

3. Attached earlobes is a recessive trait. If a woman with attached
earlobes has a child with a man with detached earlobes whose mother
has attached earlobes, what is the probability their child will have
detached earlobes? *

Answers

Answer:

It would be a 50% chance

Explanation:

D.  R.

R.  R

In bacterial communities, where resources are often limited, survival requires the ability to sense, respond to, and cooperate or compete with neighboring organisms.

a. True
b. False

Answers

Answer:

Explanation:

True.

In bacterial communities, where resources are often limited, survival requires the ability to sense, respond to, and cooperate or compete with neighboring organisms is a true statement.

What are Bacterial communities?

Bacterial communities differ in their species makeup, the niches they occupy, and the effects they have on various ecosystems.

Communities defy a single, fundamental definition due to their complexity. Instead, they offer fascinating illustrations of dynamic processes that vary with ecological size. In the beginning of microbiology, there were difficulties in describing and classifying communities.

Robert Koch revolutionized the study of microbiology in the late 1800s by inventing his techniques for proving the link between an infection and an organism (Koch, 1876). Koch's hypotheses continue to be the "gold standard" for linking germs to illness or any other interesting event.

Therefore, In bacterial communities, where resources are often limited, survival requires the ability to sense, respond to, and cooperate or compete with neighboring organisms is a true statement.

To learn more about bacteria, refer to the link:
https://brainly.com/question/8008968

#SPJ5

What cell parts are common to all of these cells?
Use complete sentences.

Chlamydomonas
Spirogyra
Elodea
Squamous Epithelium

Answers

Answer: All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4). The cells of most Chlamydomonas species are more or less oval and feature a noncellulosic membrane (theca), a stigma (eyespot), and a usually cup-shaped chloroplast. Although photosynthesis occurs, nutrients also may be absorbed through the cell surface. Asexual reproduction is by zoospores.  The filamentous masses come to the surface and become visible as slimy green mats. Spirogyra has a cell wall, nucleus, pyrenoid and spiral chloroplasts.  This Elodea leaf cell exemplifies a typical plant cell. It has a nucleus, and a stiff cell wall which gives the cell its box-like shape. The numerous green chloroplasts allow the cell to make its own food (by photosynthesis). The central vacuole takes up most of the volume of the cell. Squamous cells tend to have horizontally flattened, nearly oval-shaped nuclei because of the thin, flattened form of the cell. Squamous epithelium is found lining surfaces such as skin or alveoli in the lung, enabling simple passive diffusion as also found in the alveolar epithelium in the lungs. brainliest?

Explanation:

Which organism described below makes its own food?
yoo yoo ill rlly apriciate if someone helps me

Answers

A
Explanation:
everything else finds or eats food that was made otherwise.

I need help with this, thank you

Answers

Answer:

a

Explanation:

the answer is a

universe is biggest and then Galaxy and solar system and then earth

the anwser is a! have a good day!

Mutations are a source of variation in:
A)asexually reproducing organisms
B)neither option
C)both options
D)sexually reproducing organisms

Answers

C( both options. Hope it helps!!!!

Calculate the diploid & haploid numbers for each of the following organisms
Organism
Diploid number
Haploid number
Camel
70
Human
46
Squirrel
20
Apple
34
3
Mosquito
Frog
13
Lettuce
18
Explain how a human baby gets 46 chromosomes:

Answers

Answer:

Meiosis is the start of the process of how a baby grows. Normally, meiosis causes each parent to give 23 chromosomes to a pregnancy.  When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes.

Pls answer fast!!!! Timed!!!
Which of these descriptions best contrasts safety knowledge for cows and horses?
A. Horses have a definite flight zone, whereas cows do not
B. Cows will startle at sudden movement or noise, but horses do not.
C. Cows have a definite flight zone, whereas horses do not.
D. Cows have 360-degree vision, but horses do not​

Answers

Answer:

Cows have a definite flight zone, whereas horses do not. So the answer is C.

what is a good blood pressure?

Answers

Answer: A normal blood pressure level is less then 120/80mmHg

Explanation:

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A chi-squared test for homogeneity of proportions requires thatA. ni, n2, n3, ... > 30 B. all expected counts are > 5 C. nipi, n2p2, n3p3, ... > 10 How many grams are in 3.0 moles of sodium chloride (NaCl)? Which situation CANNOT be represented by this equation? 67=29 6 x - 7 = 29 CLEAR CHECK Joel earns $7 $ 7 per hour to mow his aunt's lawn. If he spends $6 $ 6 on gas, how many hours, x , will he need to mow to have $29 $ 29 left? Joel mows his aunt's lawn for $6 $ 6 per hour. If he spends $7 $ 7 on gas, how many hours, x , will he need to spend mowing the lawn to have $29 $ 29 left? Joel takes 6 6 hours to mow his aunt's lawn. If he spends $7 $ 7 on gas, how much does he get paid per hour, x , to mow the lawn and still have $29 $ 29 left? Critical discuss how personal values may assist you to sustain positive relationships with your friends What does resting heart rate mean?? How many objects must be present in a system to demonstrate gravity as a force of attraction? If you are insured with third party insurance, it will cover which costs?A. business losses due to a denial-of-service attackB. loss of data in your laptop because of a coffee spilloverC. ransomware attack on your laptopD. costs related to lawsuits, and penalties due to a cyberattack Read the following paragraph from the section "Question: What Duties Did The Women Perform?" You can't really draw a sharp distinction between nurses and soldiers, because nurses had to be in battle, tending to soldiers. They were often on the battlefield or nearby trying to get to the wounded. You could argue that it was just as dangerous for them to work as nurses as to be an active soldier. What conclusion is BEST supported by this paragraph? A Because it was so dangerous to tend to soldiers on the battlefield, women were soon prohibited from being nurses as well. B Because nurses and soldiers worked so closely on the battlefield, there was often confusion about which roles they played. C Some women decided to help by first signing up as nurses, then quickly realized that becoming a soldier would be easier. D Some women who enlisted might have concluded that if they were permitted to be nurses, they should be allowed to be soldiers. If you have $2000 and you made an investment that cost $400 and it gives back 1000 how much Which one is it for a brialiest I need help pls is due today What is the product of 2x + 3 and 4x^2 - 5x + 6 Arrange the following Vertical Integration terms in proper hierarchy. Further Processing Primary Breeders Transportation & Marketing Processing Plants Breeders Hatchery Growout Farms Feed Mill which are examples of steroids? A. testosterone and trans fats B. cholesterol and phospholipids C. cholesterol and vitamin D D. estrogen and phospholipids who once argued for the United States to be led by an elected monarch who had a high social status Can somebody explain how I'm supposed to do this?? Why did spain took over cuba Excerpt from bee Season answer key 40x +16y = ( + )plz help me which expression is a fourth root of -1 + i3?