In a population in Hardy-Weinberg equilibrium, the frequency of recessive alleles will ________ over time.
A) increase
B) decrease
C) remain the same
D) increase and then decrease
C) remain the same
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Which stimuli most directly causes the Venus flytrap to catch an insect?
a. gravity b. light c. touch d. scent e. sound
A consumer's production efficiency is ___________ the assimilation efficiency.
A) always less than B) always the same as C) always greater than D) unrelated t
What evidence is used to determine the branching sequence of an evolutionary tree?
A) experiments in artificial selection B) anatomical or molecular homologous structures C) the number of genes present in an organism D) an overall assessment of general similarities between organisms
Which of the following is TRUE of spirochetes?
A. they are peritrichous. B. they are Gram-positive. C. they are able to penetrate a host's tissues. D. they are obligate intracellular organisms. E. they are pleomorphic.