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grin007 [14]
3 years ago
14

17. Which type of selection do each of the following scenarios describe?

Biology
1 answer:
Nuetrik [128]3 years ago
4 0

Answer:

The cases represent examples of directional selection.

Explanation:

The directional selection is a type of natural selection known to benefit an extreme phenotype in a range of continuous variation. This type of selection may also lead to the loss of the phenotypes distributed in the other extreme of the variation range.

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The brain coordinates the physical changes that occur during puberty and the ______ plays an especially important role in this p
levacccp [35]

Answer: Hypothalamus

The brain coordinates the physical changes that occur during puberty and the hypothalamus plays an especially important role in this process.

Explanation:

Since the hypothalamus controls the secretion of hormones from the pituitary gland, and the pituitary gland, also known as master gland, controls the activities of all other glands like the following:

- gonads (ovaries and testes), responsible for producing many of the sex hormones and hence, development of sexual characterictics

- thyroid, responsible for producing thyroxine, responsible for body metabolism and development.

Thus, hypothalamus plays important role in puberty

4 0
3 years ago
A wildfire burns a region of a healthy grasslands ecosystem. Which climax community will MOST LIKELY arrive in the burned region
Reptile [31]

Answer:

lichens and bryophytes[secondary seccession]

Explanation:

after the wildfire, the area would bee too dry and therfore it'll lead to a xerarch succession. lichens and bryophytes would be the climax communities.

7 0
3 years ago
Read 2 more answers
Would an Egyptian pyramid that is 4500 years old be considered a fossil?
lara [203]

An Egyptian pyramid that is 4500 years old will be considered as a fossil in this scenario.

<h3>What is a Fossil?</h3>

This is defined as trace of an animal or plant of a past geologic age that has been preserved in Earth's crust.

Since it has been discovered that the egyptian pyramid contains thousands of marine fossils then it can be generally referred to as a fossil.

Read more about Fossil here brainly.com/question/11829803

#SPJ1

8 0
2 years ago
The table below shows the depths at which an index fossil and three other fossils were found. Which statement is correct?
Harrizon [31]
I believe the answer is B
6 0
3 years ago
A carbohydrate molecule is (2 points) a macromolecule made of amino acids that provides structure for a cell and is not soluble
Sonja [21]
Carbohydrate consists as the name as of carbon and hydrogen and oxygen in the same ratio as water (hydra). Another name for carbohydrates would be saccharides... this is for an example glucose, ribose and so on... and we use fx glucose in cellular respriation. 

A carbohydrate<span> is a biological </span>molecule<span> consisting of carbon, hydrogen, and oxygen </span>
5 0
3 years ago
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