Which statement best describes parasitism?
a. A parasite is harmful to the host.
b. A parasite provides nutrients for the host.
c. A parasite does not harm the host.
d. A parasite does not receive any benefits from the host.
e. A parasite always kills its host.
ANSWER: a
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a. sclera b. thalamus c. organ of Corti d. retina e. choroid
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Fill in the blank(s) with the appropriate word(s).