Q: Coxal glands collect liquid waste from what? Choices: - lungs - plasma - heart - blood A:
blood

(Question)
Q: Many species secrete a hard external skeleton of what? Choices: - sodium bicarbonate - hydrogen carbonate - carbon dioxide - calcium carbonate A:
(Answer)
calcium carbonate

Ques: Q: Most geological activity takes place where? Choices: - high altitudes - ocean floor - center of plates - at plate boundaries A:
Ans: at plate boundaries

(Q).
Q: What do you call the entire range of wavelengths of electromagnetic waves? Choices: - electric spectrum - gaseous spectrum - molecular spectrum - electromagnetic spectrum A:
(A).
electromagnetic spectrum

Ques:Q: Whether focused on ancient life, the life of bacteria, or how humans could live on the moon, four unifying principles form the basis of what branch of science? Choices: - electronics - chemistry - geology - biology A:

Ans:biology

Q: Most of the trash in the ocean is made of what material? Choices: - styrofoam - hydrocarbons - wood - plastic A:
plastic