The first group with flowers are the
a. algae.
b. fern allies.
c. ferns.
d. angiosperms.
e. gymnosperms.
Answer: d
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Which of the following represents a difference between eccrine sweat glands and apocrine sweat glands?
a) Eccrine sweat glands are located deeper in the dermis than apocrine sweat glands. b) Eccrine sweat glands use exocytosis to make secretions, while apocrine sweat glands do not. c) Eccrine sweat glands begin to function at puberty, while apocrine sweat glands function throughout life. d) The secretions of apocrine sweat glands contain more fat and protein than do the secretions of eccrine glands.
Planting trees can combat global warming because
a) photosynthesis from those trees absorbs O2, a greenhouse gas, from the atmosphere b) photosynthesis from those trees absorbs CO2, a greenhouse gas, from the atmosphere c) photosynthesis from those trees will produce carbohydrates that can be used as a greenhouse-gas-free fuel d) in the process of photosynthesis, the leaves of those trees will intercept photons from the sun, thus reducing the amount of heat reaching the earth e) the shade from the leaves of the trees will cool the earth
Marsupials are thought to be most closely related to:
a. placental mammals. b. monotremes. c. reptiles. d. birds. e. amphibians.
How is the secondary response different from the primary response in terms of antibody concentration in the blood?
a. The secondary response is faster and produces more antibodies than the primary response. b. The secondary response is faster, but does not produce more antibodies than the primary response. c. There is no difference with regard to antibody concentration in the blood. d. The secondary response is slower, but produces more antibodies than the primary response.