Q: What is the common term for the chemical formula h 2 0? Choices: - hydrogen - air - oxygen - water A:
water

(Question)
Q: Hagfishes have a skull made of what? Choices: - gelatin - chitin - bone - cartilage A:
(Answer)
cartilage

Ques: Q: The roughness of interacting surfaces and the magnitude of force pushing one object onto another are two factors related to what force? Choices: - energy - tension - temperature - friction A:
Ans: friction

(Q).
Q: What structures of the cardiovascular system help regulate body processes by either constricting or dilating? Choices: - muscles - cartilage - capillaries - blood vessels A:
(A).
blood vessels

Ques:Q: What is the name of the order that salamanders belong to? Choices: - oronthalic - aneuploid - platyhelminth - urodela A:

Ans:urodela

Ques:Q: Why are exotic species also called invasive species? Choices: - disregard other species - imitate other species - help other species - threaten other species A:

Ans:
threaten other species