Figure 2.5B
Which atom is depicted in the accompanying figure?
A. Hydrogen
B. Helium
C. Carbon
D. Nitrogen
E. Oxygen
Answer: C
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Metamerism refers to:
A. a body type that contains clearly distinguishable dorsal and ventral surfaces. B. the division of the body into a series of repeating segments. C. loss of crystalline structure of an amorphous state. D. None of the choices is correct.
Photosynthetic organisms are essential for limiting the damage done by global warming because they
____.
a. move carbon from the atmosphere to living organisms b. move carbon from the soil to the atmosphere c. move carbon from the atmosphere to the soil d. produce oxygen e. sequester carbon in geologic sediments
A mutualistic association between a plant root and a fungus is known as a
a. sac fungus. b. lichen. c. mycorrhizal root. d. club fungus.
Which of the following is responsible for epidemics of respiratory disease in infants?
A) rhinovirus B) adenovirus C) respiratory syncytial virus D) influenza E) Mycoplasma