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insens350 [35]
3 years ago
14

a reduction of the size of a population to single or few individuals resulting in loss of genetic variation is known as the ____

______
Biology
1 answer:
makvit [3.9K]3 years ago
3 0

Answer:

Bottleneck effect

Explanation:

The Bottleneck effect is when species go through an event that reduces its population. The ones that survive have reduced genetic diversity compared to the original population since fewer individuals means there are fewer genotypes.

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Identify a probable reason that the dark moths survived while the light moths did not.
kirill [66]

Answer:

This question has little context, but I understand what you are trying to say.

The reason why dark moths survived while light moths weren't able to survive is due to the dark moths having conditions that allowed them to camouflage better than the light moths. An environmental condition that would allow this would be the dark moths and the light moths living in the same dark environment.

Explanation:

7 0
3 years ago
Read 2 more answers
The distinction between sponges and other animal phyla is based mainly on the absence versus the presence of
Marina CMI [18]

Answer:

The correct answer is option D. True tissues.

Explanation:

The cell that made sponge does not form the tissue however sponge have cells that play important role and specific for specific function but does not have true tissues.

In other animal phyla cells form tissue or organ or organ systems and called as true tissues.

Thus, the correct answer is option D. True tissues.

4 0
3 years ago
Class Mammalia is divided into two subgroups: marsupials and placental mammals.
White raven [17]

Answer:

The given statement is false.

Explanation:

The mammals can be differentiated into three main groups on the basis of the development of their babies. These three groups are marsupials, monotremes, and placental mammals, which is the largest group. The monotremes refer to the mammals, which lay eggs. The marsupials refer to the mammals, which give birth to young ones that are not developed completely. While in a placental mammal, the development takes place within the body of a mother until and unless its systems of the body start to work on their own.

3 0
3 years ago
Pietro has two dogs that are related, and he wants to understand why one of the dogs has tan fur and the other has brown fur.
kompoz [17]

Polygenic inheritance is simply a form of inheritance whereby the trait of the individual or the animal is gotten from the cumulative effects of several genes. In such case, there are many genes which control the expression of the trait. This is quite different from the monogenic inheritance whereby the trait is as a result of the expression of just only one gene.

Since Pietro has two dogs that are related, and one of the dogs has tan fur and the other has brown fur, then this means there's more than one gene which is expressed in this case.

In conclusion, the answer to the question is polygenic inheritance.

Read related question on:

brainly.com/question/22923

6 0
3 years ago
You breed a plant that has purple flowers with a plant that has orange flowers and the resulting offspring has purple and orange
gayaneshka [121]

Answer:

Incomplete dominance

Explanation:

Incomplete dominance is the expression of phenotype of two paired alleles (i.e dominant and recessive allele) all together.

Usually when two alleles get paired, the characteristics of the dominant allele is expressed while the characteristics associated with recessive alleles are expressed only when the two recessive allele get paired.

Here in this case the characteristics of both type of allele are expressed i.e. both orange and purple strips appear in the offspring. Hence, this case shows the incomplete dominance.

5 0
3 years ago
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