Q: What refers to a substance made from two or more elements joined by chemical bonds? Choices: - basic - component - contrast - compound A:
compound

(Question)
Q: What is the major cause of chronic respiratory disease as well as cardiovascular disease and cancer? Choices: - drinking - exercise - diet - smoking A:
(Answer)
smoking

Ques: Q: Autoimmunity can develop with time, and its causes may be rooted in this? Choices: - inheritance - resistance - spontaneous mutation - molecular mimicry A:
Ans: molecular mimicry

(Q).
Q: What is the term for liquid waste formed by kidneys? Choices: - blood - feces - sperm - urine A:
(A).
urine

Ques:Q: What is the smallest unit of structure and function of all living organisms? Choices: - chromosome - organelle - organ - the cell A:

Ans:the cell

Ques: Q: Which two basic parts of a plant develop tough outer coatings to protect the plant from the environment? Choices: - roots and leaves - stems and stalks - bark and stems - leaves and stems A:
Ans:
leaves and stems