The correct answer is B; Adaptive theory.
Further Explanation:
The adaptive theory is also known as the evolution theory. Sleep is thought to be an evolution and that when a person is sleeping their body is conserving the energy that they need to function. This theory beleives that all humans and other species have evolved throughout time and only sleep when it is hazardous to their life.
Research has shown that animals that all animals who have only a a few natural predators will sleep up to 15 hours a day. The animals who have numerous predators will sleep only a few hours, up to five hours, a day.
There are four theories of why we sleep, they are;
- Repair and Restoration Theory
- Evolutionary Theory (adaptive)
- Information Consolidation Theory
- The Clean-Up Theory
Learn more about sleep theories at brainly.com/question/13044986
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<span>Checks and balances is a system that allows each branch of a government to amend or veto acts of another branch so as to prevent any one branch from exerting too much power. Just imagine, if one branch had to much power it could cause a lot of issues within our government.
Hoped this helped!</span>
Grégoire Kayibanda was the first president
