The immediate results of the widespread use of pesticides and fertilizers included ________, but long-term results included ________
A) dramatic increases in crop yields; the evolution of pest resistance
B) the increased spread of malaria; delayed resistance to pesticides
C) global declines in agricultural productivity; worldwide distribution of DDT
D) global declines in undesirable pests such as mice and rats; increases in these pests
Answer: A
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What is the general effect of humans on the nitrogen (N) and phosphorus (P) cycles?
A. We greatly increase levels of N and P through the burning of fossil fuels. B. We cause levels of N and P in the environment to drop through our farming practices. C. We overuse N and P in our farming practices and cause high levels to enter the natural environment. D. We deplete levels of N and P in our farming practices and do not replenish them.
Hawaiian honeycreeper diversity is best
described as an example of
a. behavioral isolation. b. morphological convergence. c. exaptation. d. adaptive radiation. e. sympatric speciation
The proteome refers to the collection of open reading frames in a genome.
Answer the following statement true (T) or false (F)
Kinases are responsible for the addition of ________ to other proteins
A) phosphorus B) cyclin C) phosphate D) nitrogen