Carbon dioxide is an example of a(n)

a. atom.
b. ion.
c. compound.
d. mixture.
e. element


C

Biology & Microbiology

You might also like to view...

Which of the following is not true of the outer membrane?

A. Gram-positive bacteria have an outer membrane. B. The lipid portion of the lipopolysaccharide layer is termed endotoxin. C. Porins create channels through the outer membrane. D. The innermost layer is a phospholipid bilayer. E. The uppermost layer is made of lipopolysaccharide.

Biology & Microbiology

What term defines the characteristics that suit an organism to the conditions of a particular environment?

a. genotypes b. genetic drift

c. adaptations d. inheritance e. mutations

Biology & Microbiology

Which statement about a secondary immune response is FALSE?

a. It is a response to an antigen. b. It may occur years after a primary response. c. It involves memory cells. d. It has a longer latent period than a primary response. e. It is stimulated by less antigen than in a primary response.

Biology & Microbiology

Compared to ELISAs, immunofiltration assays

A. are faster. B. are more accurate C. require more material. D. take more time. E. are less accurate.

Biology & Microbiology