The carrying capacity of an environment is
increased by
a. pollution.
b. predation.
c. disease.
d. population growth.
e. none of these
E
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After the first exposure to an antigen, a ________ stimulates growth and multiplication of antigen-reaction cells
A) secondary innate immune response B) primary adaptive immune response C) phagocytic immune response D) hyperactive cytotoxic response
In the recognition of foreign microbial pathogens by host cell phagocytes, which of the following are found on the pathogen rather than on or in the phagocyte?
A. Pattern recognition molecules B. Toll-like receptors C. MAMPs D. NOD receptors
Most fossils ____
a. are found in sedimentary layers of rock b. form without water c. contain remnants of soft body parts d. show evidence of extinct species e. are impervious to erosion
Sex linkage involves traits on chromosome number _____________.
a. 1 b. 7 c. 10 d. 23