If a baboon learns to eat many different kinds of fruit instead of relying on only one kind for its nutritive needs, we would argue that this behavior promotes its survival. thus, the behavior

adaptive behavior

Explanation:

Adaptive behavior -

It refers to the changes adapted by the organism in order to survive in a better way is referred to as adaptive behavior.

The behavior are like the life skills , independence , independent living etc.

These characteristics are adapted by humans as well as animals.

Hence, from the given scenario of the question, the behavior of baboon is referred to as adaptive behavior.

i honestly have no idea

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."