Each species occupies a certain __________characterized by physical and chemical features and by
the array of other species living in it. Fill in the blank(s) with the appropriate word(s).
niche
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Behavior that is entirely controlled by genes and has no learning component is
(a) learned. (b) habituated. (c) instinctive. (d) classically conditioned.
The virus structure indicated by the arrow labeled C is the
A. the bacteriophage. B. genetic material, DNA or RNA. C. the protein coat, or capsid. D. the bacterial membrane. E. the lipid-rich envelope.
Match the term to the correct description.
A. Spindle microtubules attach to each sister chromatid as the nuclear envelope breaks up. B. Chromosomes are aligned midway between the spindle poles. C. A new nuclear envelope forms around each set of chromosomes, so four haploid (n) nuclei form. D. This process is most similar to mitosis.
What is an endergonic reaction?
What will be an ideal response?