About 90 percent of water absorbed through roots is lost to the atmosphere due to the process of:
A) transpiration. B) photosynthesis. C) expiration. D) perspiration.
Answer: A
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Why do peanuts grow underground? Because they
a. are a product of the root. b. are a product of the stem, which bends to the soil surface. c. are a product of the flower, which bends to bury itself in the soil. d. bud off the tuber, like the eyes of a potato. e. are a part of the seed that never grows above the soil.
Meiosis typically results in the production of
a. two diploid cells. b. four diploid cells. c. four haploid cells. d. two haploid cells. e. one triploid cell.
The partial pressure of oxygen in the lungs causes it to load into the circulatory system.
a. true b. false
Homeotic genes ________
A) have very different sequences in plant cells as compared to animal cells B) are an example of convergent evolution C) are evidence of the common ancestry of eukaryotic organisms D) regulate gene expression in both prokaryotic and eukaryotic cells