Q: What do you call the system of glands that release chemical messenger molecules into the bloodstream? Choices: - homeostasis system - nervous system - limbic system - endocrine system A:
endocrine system

(Question)
Q: The highest point of a wave is called? Choices: - surge - threshold - frequency - crest A:
(Answer)
crest

Ques: Q: What fluid is most prevalent in your body? Choices: - cold - liquid - Coolant - water A:
Ans: water

(Q).
Q: What is the smallest unit capable of life known as? Choices: - living thing - organism - insect - a cell A:
(A).
a cell

Ques:Q: Food chains and what describe the transfer of energy within an ecosystem, from one organism to another? Choices: - spider webs - fuel webs - the webs - food webs A:

Ans:food webs

Q: The colorless, odorless gas released when we breath is carbon dioxide. the harmful colorless, odorless gas released when matter is burned is what? Choices: - carbon trioxide - methane - acid monoxide - carbon monoxide A:
carbon monoxide