Refer to the paragraph on scarlet gilia. Some plants changed their flowers to lighter colors, and some retained the same darker color all season. Which plants do you expect produced more fruit?
A) those that changed their color to a lighter shade
B) those that stayed darker
C) the same numbers of fruit on both
A
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A. sugars. B. acetyl-CoA. C. alanine.
In the 1920s and 1930s, terrible dust storms carried away tons of good soil from farmland in western Oklahoma. Which of the following would be a result?
A) reduction in carrying capacity B) massive immigration C) exponential growth of human population D) shortening of the doubling rate
The wing of a penguin is ________ the wing of a butterfly
A) structurally identical to B) superior to C) homologous to D) analogous to
Why is bird flu (H5N1) considered an emerging disease whereas HIV is not?
A. Bird flu (H5N1) is bacterial whereas HIV is viral. B. Bird flu (H5N1) has only been recognized in the past 20 years. C. Bird flu (H5N1) has not infected as many people as HIV. D. Bird flu (H5N1) has infected more people than HIV. E. Bird flu (H5N1) is more deadly than HIV.