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Ad libitum [116K]
3 years ago
14

Suppose a new mutation that improves metabolic efficiency is lost from a small population of mammals living in a region of seaso

nal food scarcity after a hurricane eliminates half the mammal population. This is an example of _________.A) sexual selection.
B) directional selection.
C) genetic drift.
D) stabilizing selection.
E) disruptive selection.
Biology
1 answer:
Troyanec [42]3 years ago
4 0

Answer:

C) genetic drift.

Explanation:

Genetic drift is the random change in the frequency of alleles in a population due to random sampling. Many circumstances can lead to genetic drift for example bottleneck effect, founder effect, etc.

The bottleneck effect occurs when most of the members of a population die because of any natural disaster like flood, fire, etc. This can cause a certain allele to be lost in the remaining population because of losing major populations. So here due to hurricane half of the mammal population gets eliminated which shows it is an example of the genetic drift.

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Science provides only a
melomori [17]

Science provides only a limited understanding of the supernatural, or other ways of knowing, such as art, philosophy, or religion is a true statement.

<h3>Why science provide limited information about supernatural?</h3>

Science provides only a limited understanding about supernatural, aesthetic, or other ways of knowing, such as art, philosophy, or religion because they are not proved by the science through experiments. These things are beyond from explaining them. Science can't explain the happening of supernatural phenomenon. Science does not create moral or ethical rules, laws, or judgements. Science deals with only things that can be observed or measured so that's why science is not understanding supernatural things.

So we can conclude that Science provides only a limited understanding of the supernatural, or other ways of knowing, such as art, philosophy, or religion is a true statement.

Learn more about science here: brainly.com/question/17216882

#SPJ1

3 0
1 year ago
What are the products of photosynthesis *
Crank

Answer: B

Explanation:

Photosynthesis uses CO2 and water to make oxygen and glucose.

6CO2 + 6H2O → C6H12O6 + 6O2 This is the chemical reaction that occurs. Products are on the right and we can see glucose and oxygen are formed.

4 0
2 years ago
Mary has type A blood and her husband (John) has type B blood. John's parents both had type AB. Mary and John have three childre
Mamont248 [21]
The one that said AB was addoptes
8 0
3 years ago
What benefits does performing this investigation in the physical world have over the computer simulation?
AVprozaik [17]

Answer:

Explanation:

nothing. the world will soon be taken over by computers

3 0
3 years ago
Silk is composed of β sheets whose polypeptide chains consist of the repeating sequence of Gly-Ser-Gly-Ala-Gly-Ala. Based on thi
DIA [1.3K]

Answer:

The correct answer is: d.a nonpolar side chain.

Explanation:

  • Protein can be defined as one of the factors which determine the structure as well as the function of a cell.
  • Proteins are composed of polymeric chains of polypeptides, which are made up of amino acid monomers linked to each other by peptide bonds.
  • Amino acids can be broadly categorised into non-polar and polar based on the nature of the side chain.
  • The non-polar amino acids possess hydrocarbon side-chains which are hydrophobic in nature, so they tend to avoid interaction with water molecules and usually remain in the protein interior. They are uncharged and cannot form any hydrogen bonds with water molecules.
  • The polar amino acids possess charged or polar side-chains which are hydrophilic in nature, so they tend to undergo interaction with water molecules and usually remain on the protein surface. They can form hydrogen bonds with molecules of water.
  • Beta sheets can be defined a secondary structure of the protein in which the polypeptide sequence forms horizontal strands which are linked to each other by loops. Each strand interact with each other by the formation of hydrogen bonds between the C=O group of one peptide (amide) bond in one strand with the N-H group of another peptide (amide) bond in another strand.
  • Apart from these bonds, the non-polar side chains of each amino acid in one strand forms hydrophobic or Van der Waals interactions with the non-polar side chains of each amino acid in the other strand. The polar or charged  side chains of the amino acids on each strand form either hydrogen bonds with water molecules or with oppositely charged side chains.
  • In the given question, glycine and alanine are non-polar amino acids but serine is a polar amino acid. The side-chains of the non-polar amino acids will tend to face towards the interior of the beta sheet thereby forming hydrophobic interactions with each other, while the serine will tend to face the exterior of the beta sheet so that it can form hydrogen bonds with water molecules.
  • As the number of non-polar amino acids is far more than polar amino acids so the effect of non-polar amino acids will prevail in the beta-sheet.

5 0
3 years ago
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