The way in which an organism utilizes its environment may be called
A. resource partitioning.
B. its habitat.
C. intraspecific competition.
D. competitive exclusion.
E. its niche.
Answer: E
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As the resolution of a microscope system improves, the size of the smallest object that can be seen clearly
A. is smaller. B. is not affected. C. is larger.
The interaction in which one species benefits and the second species is neither harmed nor benefited is known as:
a. mutualism b. parasitism c. commensalism d. competition e. predation
The oldest proposed cell microfossils are from ____ year-old rocks
a. 3.5 billion b. 1.25 billion c. 1.8 billion d. 1.5 billion e. 500 million
Why are archaea and bacteria—both collections of prokaryotic organisms—grouped into different domains while organisms like fungi and animals are in the same domain?
a. Bacteria and archaea differ significantly in their intracellular organization and structure, but fungi and animals have similar intracellular structure. b. The DNA sequences of bacteria and archaea are more different than animals and fungi. c. Fungi and animals look much more similar than bacteria and archaea. d. Bacteria and archaea differ significantly in their rRNA sequences, but fungi and animals share some rRNA characteristics.