Female finches, which do not sing, often choose to mate with males that sing a specific, elaborate song. This is an example of
A) fitness.
B) assortative mating.
C) inbreeding.
D) coevolution.
E) sexual selection.
E
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Which of the following is true of eukaryotic replication initiation?
A. Origins are identified in G2 of the cell cycle. B. The prereplication complex (preRC) assembles at the beginning of S phase. C. The initiator protein, or origin recognition complex (ORC), binds to the conserved elements of the ARS in G1. D. The helicase is a component of the replication complex (RC) but not the preRC. E. The RC forms in M phase of the cell cycle.
Classically, nature and nurture have been considered as two very separate factors impacting phenotype. Considering
what we have learned of methylation, is this always the case? What will be an ideal response?
Plants acquire nitrogen from:
What will be an ideal response?
Respond to the following statements with reference to the five trophic categories listed below.
A. B. A herbivore is this. C. A bear eating blueberries is functioning as this. D. A Venus flytrap devouring an insect to obtain nitrogen functions as this. E. A bear feeding on an adult salmon (which eats other fish, squid, and shrimp) is functioning as this. F. Most fungi function as this.