Biotic pollution has been particularly harmful to native species:a
in deserts.
b. in tundra.
c. on islands.
d. in tropical rain forests.
e. in grasslands.
c
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The function of vertebrae is to
A. protect the brain. B. protect the nerve chord. C. protect the nerve cord and provide attachment points for muscles. D. provide attachment points for muscles. E. protect the brain and nerve cord.
The most significant difference between archaea and bacteria is the:a
lack of a nuclear envelope in archaea. b. absence of the 70S ribosomes in bacteria.
c. presence of a single filament flagellum in bacteria. d. absence of peptidoglycans in the cell walls of archaea. e. presence of fatty acids in the plasma membranes of archaea.
The portion of a plant that lies beneath the ground is the ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following laboratory procedures is used for culturing animal viruses in the laboratory?
A) cell cultures B) broth cultures C) embryonated eggs D) both cell cultures and embryonated eggs E) synthetic cytoplasm