Q: What system of organs delivers blood to all cells of the body? Choices: - gastrointestinal - respiratory - integumentary - cardiovascular A:
cardiovascular

(Question)
Q: What is the term for environmental causes of mutations? Choices: - pollutants - catalysts - carcinogens - mutagens A:
(Answer)
mutagens

Ques: Q: For most waves, energy is proportional to what, a term that describes the height of the wave? Choices: - wave frequency - wave volume - wave threshold - wave amplitude A:
Ans: wave amplitude

(Q).
Q: What is the name of the disorder of the arteries in which cholesterol and other materials are deposited on the interior of the arterial wall? Choices: - arthritis - anemia - paralysis - atherosclerosis A:
(A).
atherosclerosis

Ques:Q: What do we call forces that act on the system from outside? Choices: - material - internal - static - external A:

Ans:external

Q: The human body has as many as two trillion lymphocytes, and lymphocytes make up about 25% of all of what? Choices: - red blood cells - pathogens - glands - leukocytes A:
leukocytes