Keratinase has the greatest effect on the ________.
A. genital system
B. urinary system
C. respiratory system
D. skin
E. gastrointestinal system
Answer: D
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The ability of a postsynaptic cell to respond to a neurotransmitter depends upon:
A. an action potential in the presynaptic cell. B. release of neurotransmitter from the presynaptic cell. C. presence of receptors on the postsynaptic cell. D. All of the answer options are correct.
What type of sensory receptors function in balance and sensing gravity?
A. mechanoreceptors B. photoreceptors C. nociceptors D. chemoreceptors
The impacts of the microbial types that inhabit cross-sections of water sediment are vast. Consider that sediments deep beneath water surfaces are home to perhaps ________ of the world's bacterial and archaeal biomass.
A. 50% B. 10% C. 20% D. 95%
Water in plants is lost to the atmosphere through the stomata
Indicate whether the statement is true or false