Mad cow disease is caused by a
A. virus.
B. bacterium.
C. prion.
D. viroid.
E. virion.
Answer: C
Biology & Microbiology
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The ________ is the collection of microorganisms (and their genes) that are normally present in and on an organism.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
A naked virus exits a cell by ________; an enveloped virus exits a cell by ________.
A) lysis, budding off B) budding off, lysis C) the lytic cycle, the lysogenic cycle D) endocytosis, exocytosis
Biology & Microbiology
A seed has three parts: an embryo, a source of food for the developing embryo called ________, and a protective cover.
A. antheridium B. ovule C. rhizoid D. endosperm E. cone
Biology & Microbiology
The plasma membrane is ______ permeable
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology