The most abundant molecule in the cell is:
A) carbohydrate.
B) lipid.
C) nucleic acid.
D) water.
E) protein.
D) water.
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What will be an ideal response?
In the section "Investigating Life: Size Matters in Fishing Frenzy", a population declines when
A. death rate exceeds reproductive rate. B. reproductive rate exceeds death rate. C. reproductive and death rates are equal. D. smaller animals are selectively removed. E. animals are removed randomly.
Which of the following scientists argued that variation among individuals allows evolution to occur?
A) Aristotle B) Lamarck C) Linnaeus D) Wallace
How do zoonotic diseases emerge?
a. The infectious agent is not propagated in an animal. b. The environment is not suitable for the propagation and transfer of the agent. c. A new susceptible host species is present. d. All of the above are correct.