Q: What is the measure of the force of gravity pulling down on an object called? Choices: - factor - mass - volume - weight A:
weight

(Question)
Q: What word describes any chemical that affects the body's structure or function? Choices: - treatment - toxin - gift - drug A:
(Answer)
drug

Ques: Q: What is the term for a system maintaining a stable internal environment in a changeable external environment? Choices: - Pregnant - fetus - hypothesis - homeostasis A:
Ans: homeostasis

(Q).
Q: The only obvious difference between boys and girls at birth is what type of organs? Choices: - digestive - respiratory - nervous - reproductive A:
(A).
reproductive

Ques:Q: All of the land drained by a river system is called its basin, or what "wet" term? Choices: - river bank - groundwater - wetlands - watershed A:

Ans:watershed

Ques: Q: What is the scientific term for climates with the least moisture? Choices: - mediterannean - tropical - polar - arid A:
Ans:
arid