Which of the following statements concerning biofilms is FALSE?
a. They are formed by bacteria living in a watery environment.
b. They enable bacteria to attach to solid surfaces.
c. They are usually less than 2 ?m thick.
d. An example is dental plaque.
e. They may develop on surgical implants.
C
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Habitat corridors have two roles: providing a unique habitat for some plant and animal species and providing a means of dispersal between larger patches of habitat
Indicate whether the statement is true or false
Cnidarian bodies are one of two forms. A ___ consists of a sessile stalk with tentacles on one end. A ____ is a free-swimming, bell-shaped, "tentacles-down" body form with a single opening forming the mouth.
A. cephalization; amnion B. amnion; medusa C. amnion; polyp D. polyp; medusa E. medusa; polyp
Which of the following is the most direct result of the heating up of pond water during the summer?
(A) The water's ability to hold oxygen decreases. (B) The water's ability to act as a buffer changes. (C) The viscosity of the water increases. (D) Hydrogen bonding at the surface of the water increases.
Flagellum
What will be an ideal response?