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Soloha48 [4]
3 years ago
9

Which causes natural selection to occur?

Biology
2 answers:
Serjik [45]3 years ago
6 0

Answer:

c. Presence of predators

Explanation:

Ainat [17]3 years ago
3 0

Answer:

Natural selection can occur by A

Explanation:

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Which of the following is NOT a function of hormones?
sammy [17]
<h2>Answer:</h2>

I believe the correct answer is D. React to stimuli from outside the body.

<h2>Explanation:</h2>

Hormones are types of proteins that produce responses hand in hand with neurons but they are much slower and longer lasting. They can act on the same cells and in that instance they will be called autocrine hormones. Those that act on neighbouring cells are called paracrine hormones while those that act on far away cells are called endocrine hormones.

<h2>Further Explanation:</h2><h3>a. Initiate behavior and reproduction:</h3>

This is a function of hormone(s). Hormones such as testosterone can initiate both behavior of an organism and also stimulate reproduction. Testosterone causes maturation of sex features and sperms in males to initiate reproduction. Other hormones with such functions include: Estrogen and adrenaline.

<h3>b. Coordinate the production and use of energy:</h3>

Some hormones conduct this function by regulation metabolism in the body. These include: Insulin in intake of glucose for energy and glucagon in maintaining blood glucose levels. Corticosterone also responds in stress to maintain energy.

<h3>c. Maintain nutrition and metabolism:</h3>

Nutrition can be maintained by hormones such as ghrelin that stimulates appetite, insulin in intake of glucose, leptin and glucagon.

<h3>d. React to stimuli from outside the body</h3>

This is not a function of a hormone but rather the function of a neuron. Neurons have specific structures called denrites that recieve signals/stimuli from outside the body then convert them to nerve impulses that are transmitted to the brain which produces another impulse to be taken to a specific site to produce a desired response.

Level: High Schoo;

5 0
3 years ago
7. Fossil remains of previous life forms can be preserved in all of the
Law Incorporation [45]
Tar sands pits , sorry if I got this wrong
6 0
3 years ago
Pls help me with this it’s worth 10 points!!!
MArishka [77]

the controlled variables are, timing of adding ice, water used, and amount of sugar. the dependant variables are, daily temperature, and amount of lemon juice. the independent variable is, number of glasses sold. hope it helps

please mark brainlyist

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3 years ago
This is an interdependent relationship between two different species.
Vika [28.1K]

If those are the only answers i would say mutualism

7 0
3 years ago
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In order for evolution to occur, what must happen in a population?
kozerog [31]
For evolution to occur: There must be genetic variation in a population. This provides variation on which natural selection can act. Then natural selection can act by selecting those species which are better adapted to the environmental conditions. Over time those animals that are best suited to the environment only will survive and reproduce. Those organisms successful genes will be preserved and eventually the gene frequency in the population will change, changing the overall characteristics of a population. This is how evolution occurs.
6 0
3 years ago
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