Q: Many objects have color because they contain what? Choices: - solvents - vitamins - salts - pigments A:
pigments

(Question)
Q: Banging on a drum is an example of which type of energy? Choices: - solar. - molecular - potential - mechanical A:
(Answer)
mechanical

Ques: Q: What is formed when amino acids are linked together in a long chain? Choices: - amino acid - hormones - water molecule - protein A:
Ans: protein

(Q).
Q: Minerals that are not compounds consist of a single what? Choices: - electron - gas - proton - element A:
(A).
element

Ques:Q: Do most humans feed at one trophic level, or more than one? Choices: - less than one - one - none - more than one A:

Ans:more than one

Q: What occurs when individuals of different species strive for a limited resource in the same area? Choices: - vegetal competition - asexual competition - intraspecific competition - interspecific competition A:
interspecific competition