Which of the following statements about the physiological responses of plants to increasing temperatures and carbon dioxide levels is false?
A. Many plants devote more resources to
reproduction under these conditions.
B. Many plants produce flowers earlier in
response to increased temperatures.
C. Many plants produce leaves earlier in
response to increased temperatures.
D. The amount of nitrogen in plant tissues
declines in response to increased CO2.
E. None of the answer options is false.
A
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High concentrations of salt and sugar in foods
A. are useful in preserving the food. B. tend to draw water out of a cell. C. tend to force water into a cell, causing plasmolysis. D. have no effect on water availability. E. are useful in preserving the food AND tend to draw water out of a cell.
What happens when plant cover is removed from the ground?
a. The ground will be wetter because roots are no longer sucking up water. b. The ground soaks up more water after a rainfall. c. Less rain will fall because of reduced transpiration. d. More species will fill the habitat. e. Lakes and rivers become larger.
Quinoa seeds are not only higher in protein content
than wheat but have more complete __________ content. a. lipid b. nucleotide c. sugar d. amino acid e. all of these
The internal membrane system of the chloroplast is called a