A ________ is simply a piece of genetic material coated with protein.
A. bacterium
B. protozoan
C. parasite
D. virus
Answer: D
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Composed of cartilage, ligaments, tendons, and bones, the skeletal system forms a strong, tightly bound but flexible framework for the body.
Answer the following statement true (T) or false (F)
Energy needs are based on
A) a calculation called the EER that includes age, gender height, weight, and physical activity. B) average needs plus a 30 percent margin of safety. C) ninety percent of average needs. D) double the minimum requirement.
Chemical substances in plants, some of which perform important functions in the body, are called:
a. phytochemicals. b. free radicals. c. antioxidants. d. zoochemicals.
According to BMI criteria, a person with a BMI of 24 would be considered:
a. underweight. b. overweight. c. obese. d. normal weight.