What type of fruit is a blackberry?
A. An aggregate of many drupes
B. An aggregate of many indehiscent fruits
C. An aggregate of many small berries
D. A multiple of small berries
E. A multiple of small pomes
Answer: A
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Which process or respiration includes the exchange of carbon dioxide and oxygen between blood and the body’s cells
Which microorganism is considered phytoplankton?
A. Sulfate reducers B. Nitrogen fixing bacteria C. Cyanobacteria D. Mycorrhizae
Early classification systems of the bacteria employed all of the following characteristics except
A. sporulation or binary fission. B. rRNA sequences. C. the ability to photosynthesize. D. motility. E. colony or filament forming.
Why does reinforcement involve a strengthening of prezygotic, rather than postzygotic, isolation?
A. The rewards of postzygotic isolation are always much smaller than those of prezygotic isolation. B. Reinforcement occurs only rarely. C. Postzygotic isolation has only a minimal evolutionary impact. D. Alleles that prevent interbreeding are more likely to be inherited by viable, nonhybrid offspring than alleles that permit random mating. E. Assortative mating is uncommon.