Q: The existence of what tiny, fundamental particles of matter was first proposed in the 1960s? Choices: - atoms - molecules - neutrons - quarks A:
quarks

(Question)
Q: What method plays a role in determining the approximate age of the earth and makes use of uranium? Choices: - fuel dating - carbon dating - waste dating - radioactive dating A:
(Answer)
radioactive dating

Ques: Q: How do organisms grow and repair themselves? Choices: - cell death - mutation - symbosis - cell division A:
Ans: cell division

(Q).
Q: Why does the body react to a loss of chloride ions? Choices: - increased tricarbonate reabsorption - decreased bicarbonate reabsorption - decreased tricarbonate reabsorption - increased bicarbonate reabsorption A:
(A).
increased bicarbonate reabsorption

Ques:Q: One of the most advanced uses of what in medicine is the positron emission tomography scanner, which detects the activity in the body of a very small injection of radioactive glucose? Choices: - radionuclides - quarks - membranes - radioisotopes A:

Ans:radioisotopes

Ques:Q: The carbon cycle can be thought of in terms of two interdependent cycles - cellular respiration and what else? Choices: - glycolysis - spermatogenesis - pollination - photosynthesis A:

Ans:
photosynthesis