Which of the following best describes a species' niche?
A. where it lives
B. what it eats
C. all of the climatic conditions to which it is
adapted
D. with whom it reproduces
E. its habitat and how it uses available
resources in that habitat
E
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Climate change occurs because greenhouse gases absorb ____ radiation
a. UVA b. UVB c. visible d. infrared e. cosmic
A difference between a morula and a blastula is that the:
A) blastula has fewer cells than the morula. B) morula is a solid ball of tightly packed cells, whereas the blastula has a cavity in the center. C) morula is a well-developed embryo, and the blastula is an earlier stage of development. D) morula has a hollow center, but the blastula doesn't.
Which of the following strategies enable non-acidophilic bacteria to endure lower pH environments?
A. Proton pumps that pump H+ out of the cell B. All of the choices are correct. C. Presence of internal buffers D. Synthesis of acid shock proteins that protect other cellular proteins
In positional cloning, which method is used to identify clones that are progressively closer to a gene of interest?
A. Chromosome painting B. Cytogenetic mapping C. Microsatellite analysis D. Chromosome walking