One of the following is a growth factor
A. Water
B. Co2
C. mineral
D. Vitamin
E. ATP
Answer: D. Vitamin
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Which statement describes the production of offspring by wingless female aphids?
a. Wingless female aphids can produce clones of female offspring by laying eggs. b. When the amount of food available in the environment increases, the number of male offspring increases. c. Wingless female aphids only produce female clones, and these clones are made without the mother laying eggs. d. Different proportions of winged male, non-egg-laying female, and egg-laying female offspring are produced based on the temperature and amount of daylight. e. Environmental conditions do not affect the sexuality of wingless female aphid offspring; sexuality is only determined genetically.
Endorphins are
a. neuromodulators. b. stimulators of brain and nervous activity. c. inhibitors of pain perception. d. neuromodulators and stimulators of brain and nervous activity. e. neuromodulators and inhibitors of pain perception.
A disease that is usually present at a low level in a certain geographic area is said to be
A. Ubiquitous B. Pandemic C. Epidemic D. Non-communicable E. Endemic
Which of the following items that are commonly added during food preparation can be considered a preservative?
A) apple juice B) meat broth C) garlic D) yeast E) whey