An infection caused by an opportunistic microbe after a primary infection has weakened the host's defenses is a ________ _________.

Fill in the blank(s) with the appropriate word(s).


Ans: secondary infection

Biology & Microbiology

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Which part(s) of the brain, when impaired by alcohol, play an important role in memory:

A. Nucleus accumbens
B. Hypothalamus
C. Hippocampus
D. All of the above

Biology & Microbiology

The fins of bony fishes are more maneuverable than those of cartilaginous fishes

Indicate whether the statement is true or false

Biology & Microbiology

Which type of plant hormone is a gas at normal temperature and pressure?

a. abscisic acid b. ethylene c. auxin d. salicylic acid e. systemin

Biology & Microbiology

When one tallies the species in a community by numbers of individuals, one typically finds that:

A) all species have about the same number of individuals. B) most species are dominant, whereas a few others are represented by relatively few individuals. C) a few species are dominant, whereas most others are represented by relatively few individuals. D) there is no general pattern in the relative abundances of species.

Biology & Microbiology