A dietary Calorie equals 1 kilocalorie. Which of the following statements correctly defines 1 kilocalorie? One kilocalorie equals _____
A) 1000 calories, or the amount of heat required to raise the temperature of 1 g of water by 1°C
B) 10,000 calories, or the amount of heat required to raise the temperature of 1 kg of water by 1°F
C) 1000 calories, or the amount of heat required to raise the temperature of 1 kg of water by 1°C
D) 1000 calories, or the amount of heat required to raise the temperature of 100 g of water by 100°C
C
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Rheumatic fever is caused by a(n) ________ infection.
A. primary viral B. opportunistic streptococcal C. primary streptococcal D. endogenous
You discover a new life-form, and study it under an electron microscope. You find that its cells have no organelles, a peptidoglycan cell wall, and fatty acids in its plasma membrane. You conclude that the new life-form is in which domain?
A. Bacteria B. Archaea C. Eukarya D. Protista E. Animalia
Which is NOT an element?
a. water b. oxygen c. carbon d. chlorine e. hydrogen
Which term refers to the mechanisms by which the body of a plant functions in its environment?
a. anatomy b. ecology c. distribution d. physiology