Q: What type of ecosystem do polar bears live in? Choices: - tropical - oceanic - natural - arctic A:
arctic

(Question)
Q: What is another name for a radioactive isotope? Choices: - nono particle - kilocalorie - xerophyte - radiostope A:
(Answer)
radiostope

Ques: Q: What forces the fetus out of the uterus? Choices: - biological clock - delayed childbirth - deep breathing - continuous strong contractions A:
Ans: continuous strong contractions

(Q).
Q: Most taste buds on the tongue are associated with nipple-shaped projections called what? Choices: - antennae - mucosa - cilia - papillae A:
(A).
papillae

Ques:Q: What is necessary for organisms to survive in the deepest parts of the ocean? Choices: - reflexes - mutation - competition - adaptations A:

Ans:adaptations

Ques: Q: What is the term for the cell fragments involved in blood clotting, which stick to tears in blood vessels and to each other? Choices: - molecules - droplets - cells - platelets A:
Ans:
platelets