Explain how proprioceptors work
What will be an ideal response?
Proprioceptors allow the central nervous system to monitor the body’s position and help keep the body
in balance. They are slow to adapt, so that body position and balance are constantly monitored. Your
body can detect and adjust to changes in weight on the body so that it stays in balance, that is
proprioceptors allow your body to compensate unconsciously.
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An advantage of asexual reproduction is that it _____
A) allows the species to endure long periods of unstable environmental conditions B) enhances genetic variability in the species C) enables the species to rapidly colonize habitats that are favorable to that species D) produces offspring that respond effectively to new pathogens E) allows a species to easily rid itself of harmful mutations
A cellular response to a signal can be terminated by:
A. depletion of the signal that activates the receptor. B. inactivation of intracellular signaltransduction proteins. C. automatic inactivation of proteins in the signal pathway over time. D. depletion of a second messenger. E. All of these choices are correct.
The principle of parsimony ____ for constructing the phylogenetic tree that represents the smallest number of
evolutionary changes.
a. minimizes the number of homologiesb. maximizes the number of homologies c. completely ignores homologies d. minimizes the number of homoplasies e. maximizes the number of homoplasies
What is the main factor that drives ozone
formation?
a. cloud cover b. rainfall c. time of day d. sunlight e. season