A kilocalorie is defined as
A) the quantity of glucose needed to increase the body temperature by 1°C.
B) the quantity of heat needed to raise the temperature of 1 kg of water by 1°C.
C) the quantity of food used to maintain normal bodily functions.
D) the quantity of food consumed during a given type of exercise.
Answer: B
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Acid rains have the same effect as
a. use of manufactured fertilizers b. ion exchange. c. denitrification. d. leaching. e. weathering.
Which organisms can do photosynthesis when there is light and become heterotrophs in the dark?
A. foraminifera B. zoomastigotes C. euglenoids D. diatoms E. dinoflagellates
Which protein is responsible for the structure and movement of cilia and flagella?
Actin Cilian Myosin Tubulin
Is the following statement true or false? "Vertebrates can never get ahead in the evolutionary race against their microbial pathogens."
a. True, vertebrate mutation rates are not high enough. b. True, vertebrate population sizes are too small. c. False, "real" evolution occurs only at the population level. d. False, the population size of immune system cells in an individual host can be similar to that of microbial pathogens.