Net carbon uptake per unit time by a plant is directly related to
A) the difference between photosynthetic rate and respiration rate.
B) photosynthetic rate.
C) respiration rate.
D) the difference between photosynthetic rate and decomposition rate.
A
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In addition to the senses of vision, taste, smell, hearing, and touch, we also have a sense called proprioception. It tells us the position of our bodies, based in part on stretch receptors in muscles. Proprioceptors are part of the ________ nervous system.
A. neuroglial B. motor C. peripheral D. central
Certain cells that line the stomach synthesize a digestive enzyme and secrete it into the stomach. Which of the following processes could be responsible for its secretion?
A) endocytosis B) exocytosis C) phagocytosis D) passive transport
Genotypic and allele frequencies for a gene that determines neck length in giraffes are measured and found to be identical in three successive generations. From this data it is reasonable to conclude that, with respect to the gene for neck length, the population is in Hardy-Weinberg equilibrium.
a. true b. false