Which of the following foods can be used to produce ATP in cellular respiration?
a) fats only.
b) carbohydrates, proteins and fats.
c) carbohydrates and fats only.
d) proteins only.
e) carbohydrates only.
Ans: b) carbohydrates, proteins and fats.
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In areas where fires are often suppressed, what can be said of the seeds that do not germinate
for many years until stimulated by fire?
a. The seeds remain dormant. b. The seeds hibernate. c. The seeds are disturbed. d. The seeds are opportunistic.
What are the most abundant phagocytic cells in humans?
a. basophils b. dendritic cells c. eosinophils d. lymphocytes e. neutrophils
If a couple is planning on having three children, what is the probability that only one will be male?
a. 0 b. 1/4 c. 3/8 d. 1/2 e. 3/4
Each of the following are characteristics of microorganisms that pose unique challenges to their study EXCEPT
A. the fact that they usually must be grown and studied under somewhat artificial conditions in vitro rather than in their natural habit. B. the fact that they must be viewed through a microscope rather than the unaided eye. C. the fact that they often exist in complex communities and individual species may be difficult to isolate from others. D. the fact that many do not have membrane-enclosed nucleus or other organelles.