Which blood vessel structure is only found in veins?

a. elastic layer
b. basement membrane
c. smooth muscle
d. valve
e. endothelium


d

Biology & Microbiology

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Which of the following is the dominate genera of skin microflora?

A) Bacteriodes B) Firmicutes C) Actinobacteria D) Proteobacteria

Biology & Microbiology

The chemical reactions in cells are called ____

a. substrate b. coenzymes c. receptor sites d. metabolism e. active site

Biology & Microbiology

The most common forms of color blindness result in the inability to properly perceive the colors

____________________ and ___________________Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The common cold can be transmitted through a virus left on a door handle by an infected person. This mode of transmission is classified as:

a. respiratory b. intestinal discharge c. fomite-borne d. open lessions

Biology & Microbiology