Carbon dioxide generally enters the plant through pores called

A) mesophyll.
B) stomata.
C) the cuticle.
D) connexons.
E) bacteriochlorophylls


E) bacteriochlorophylls

Biology & Microbiology

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In order to facilitate polymerization, monomers must be ________.

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

Biology & Microbiology

The normal human microbiota is considered part of the 1st line of defense because

A. microbiota cause an inflammatory response, eliminating pathogens. B. resident bacterial cells stimulate phagocytosis of pathogens. C. microbial antagonism keeps potential pathogens in check. D. pathogens and normal biota cannot exist in the same location.

Biology & Microbiology

____ molecules pass through a cell membrane most easily by diffusion

a. ionic b. large, polar c. large, hydrophilic d. small, hydrophobic e. large, hydrophobic

Biology & Microbiology

Host range is limited by the

A. type of nucleic acid in the virus. B. size of the host cell. C. age of the host cell. D. type of host cell receptors on cell membrane.

Biology & Microbiology