The species richness of insects on trees can be predicted by which of the following? Check all that apply.
_____ the time hypothesis
_____ the evapotranspiration rate
_____ the area hypothesis
_____ the average body size of insects
_____ the time hypothesis
__X__ the evapotranspiration rate
__X__ the area hypothesis
_____ the average body size of insects
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The most likely explanation for the phenomenon where a protein may be found in different sub-cellular locations in different cells is
A. stabilization of the mRNA transcript B. alternative splicing C. RNA interference D. transport of mRNA from the nucleus to the cytoplasm
In what stage of mitosis are the highly-compacted chromosomes used for FISH?
A) prophase B) metaphase C) anaphase D) telophase E) never achieves this level of compaction
What process is described here? A concentration gradient of H+ ions is created in the periplasmic space by actively transporting the ions across the membrane using the energy liberated when carrier molecules are oxidized. When the H+ ions pass through ATPase, enough energy is generated to add phosphate groups onto ADP molecules.
A. Deamination B. The Calvin cycle C. Oxidative phosphorylation D. Fermentation E. Substrate-level phosphorylation
The several hundred species of picture-winged fruit flies of the Hawaiian Islands are genetically very similar, yet they all differ markedly from their ancestral population in Asia. This is probably accounted for by
A. disruptive selection. B. the founder effect. C. directional selection. D. gene flow. E. sexual selection.