What does fitness mean when speaking in terms of evolution?
A. The size and diversity of the gene pool
B. How many offspring an individual produces
C. Level of overall health of the individual
D. Physical strength of a given individual in a population
Answer: B
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Which one of the following statements about gills operating in water is FALSE?
A. Water can support delicate gill structures. B. Most fish actively pump water over their gills. C. Keeping membranes moist is not a problem. D. Water carries more oxygen than air and this requires gills be more efficient than lungs. E. Gills have evolved many times and take different forms in aquatic animals.
Predict what would happen if transport between the Golgi apparatus and a growing hyphal tip in a fungus was interrupted.
A. transport by vesicles of enzymes would cease B. uptake of water by osmosis would not occur C. extension of the hyphal tip would be discontinued D. transport by vesicles of cell-wall materials would be blocked E. all of these are correct
In adult vertebrates, which of these is not one of the four principal kinds of primary tissues?
A. epithelial B. connective C. supportive D. muscle E. nerve
Which of the following is an example of endocrine signaling?
a. Epinephrine release by motor neurons at the neuromuscular junction and binding to receptors on adjacent skeletal muscle cells b. Antigen stimulation of T lymphocytes, leading to the stimulation and synthesis of a growth factor that drives their own proliferation c. Insulin release by ? cells in the pancreas, mediating an effect of glucose uptake by muscle cells d. None of the above