Q: A system of glands secretes what chemical messenger molecules into the blood? Choices: - metabolytes - enzymes - acids - hormones A:
hormones

(Question)
Q: What are alloys that are mostly composed of mercury known as? Choices: - halogens - fillings - compounds - amalgams A:
(Answer)
amalgams

Ques: Q: What state of hydrogen can be predicted based on the atoms to which it is bonded? Choices: - condensation - precipitation - evaporation - oxidation A:
Ans: oxidation

(Q).
Q: The metacarpophalangeal joints in the finger are examples of what kind of joints? Choices: - fibrous - saddle - hinge - condyloid A:
(A).
condyloid

Ques:Q: What is the process in which a liquid boils and changes to a gas? Choices: - sublimation - freezing - melting - vaporization A:

Ans:vaporization

Ques: Q: What kind of muscle is responsible for hollow organs contracting? Choices: - micro muscle - tough muscle - rough muscle - smooth muscle A:
Ans:
smooth muscle