Q: What do ocean mollusks use to absorb oxygen from the water? Choices: - shells - scales - pores - gills A:
gills

(Question)
Q: What is the fourth planet from the sun? Choices: - Pluto - Saturn - Mercury - mars A:
(Answer)
mars

Ques: Q: Low levels of thyroid hormones in the blood cause the release of what by the hypothalamus and pituitary gland? Choices: - acids - bases - enzymes - hormones A:
Ans: hormones

(Q).
Q: Why are seeds of a pine cone easily carried by the wind and dispersed? Choices: - seeds are sticky - seeds are small - seeds are dense - seeds have wings A:
(A).
seeds have wings

Ques:Q: What can happen spontaneously or as a result of mutagens in the environment? Choices: - lesions - combustion - traits - mutations A:

Ans:mutations

Q: Why do butterfly fish have fake eyespots? Choices: - aerodynamic purposes - mating purposes - random evolution - confuse predators A:
confuse predators