The percentage of individuals in a community that belong to one species is called the relative ________ of that species
Fill in the blank(s) with correct word
abundance
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The place on a stem where one or more leaves are attached is called the
a. terminal bud. b. internode. c. axil. d. lateral bud. e. node.
HIV is classified as a retrovirus because
A) it infects only cells with a CD4 receptor. B) it makes a DNA copy of its RNA once inside the host cell. C) this virus is composed of two cells surrounded by a lipoprotein coat. D) it reverts to an inactive form when it infects B lymphocytes. E) it causes the production of HIV antibodies.
The primary function of the ___________ is to serve as a storage reservoir for undigested food.
Fill in the blank(s) with the appropriate word(s).
The Ixodes tick can infect humans with Borrelia burgdorferi during which stage(s) of its life cycle?
A. only as a larva B. only as a nymph C. only as an adult D. either as a nymph or an adult E. either as a larva or a nymph