Four of the five events listed below occur during the
day, when water is abundant. Select the exception.
a. leaves absorb more carbon dioxide
b. ions are absorbed by the roots
c. less oxygen is absorbed by roots
d. stomata are closed
e. photosynthesis is efficient
Answer: d
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What is one reason why women with the genotype XXX are not phenotypically different from an XX female?
A. Because only one X is active in each cell, regardless of how many X chromosomes there are in a cell. B. Because the X chromosome only carries genes dealing with being a female, so having another one doesn't matter. C. Because the extra X chromosome only becomes active in nonreproductive areas of the body. D. Because we have enzymes that will recognize and degrade the extra X chromosome. E. None of the answer options is correct.
What is chemical digestion?
A. The use of physical actions to break down food B. The absorption of food in the small intestine C. The use of villi to break down food D. The breakdown of food by enzymes
Species found in only one place on Earth are called ________ species
A) hot spot B) exotic C) keystone D) endemic
Cartilaginous fishes have internal fertilization
Indicate whether the statement is true or false