__________ secrete products such as sweat or digestive enzymes through ducts. Fill in the blank(s) with the appropriate word(s)
Exocrine glands
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The study on mutations in germ-line cells indicates all of the following EXCEPT
a. some mutations are inherited from our parents b. some mutations arise as new mutations in the germ-line c. the mutation rates are the same in all families d. more families need to be studied to draw any real conclusions e. this information can be used in medical research
During an action potential, sodium ions
A. rush out of the cell, switching the potential to +35 mV. B. rush into the cell, switching the potential to ?70 mV. C. rush into the cell, switching the potential to +35 mV. D. rush out of the cell, switching the potential to ?70 mV. E. rapidly move in and out of different parts of the neuron, oscillating potential between ?50 and +35 mV.
What is the main way that marine teleost fishes deal with the osmotic stress of living in seawater?
a. by active transport of ions out of the body by chloride cells b. by excreting nitrogenous wastes through their kidneys as urea c. by excreting excess salt through the actions of specialized salt glands in their heads d. by active transport of ions into the body through the gills
The use of microbes to make practical products such as vaccines or hormones is called (genomics/recombination/biotechnology).
Fill in the blank(s) with the appropriate word(s).