<h2>
Answer:</h2>
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast.
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Answer: Caste system
Explanation:
They didn't introduce it to them. Someone else did.
Army Officer Candidate School
The answer is a. Physical or emotional abuse
The answer is C a huge amount of magma pushes crust along seams