Clostridium tetani, the bacterium that causes tetanus, can only survive in soil away from oxygen. It is considered which of the following?
A. an autotroph
B. an obligate anaerobe
C. a facultative anaerobe
D. aerobic
E. a phototroph
B. an obligate anaerobe
Biology & Microbiology
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Explain how the term "fluid mosaic" describes the plasma membrane
What will be an ideal response?
Biology & Microbiology
A structure whose secretions cause the uterine endometrial tissue to thicken in preparation for
pregnancy is indicated by the label
a. 1. b. 2. c. 3. d. 5. e. 7.
Biology & Microbiology
In female mammals, most genes on one of the two X chromosomes are permanently inaccessible, a phenomenon is
called __________. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Which of the following arthropods does NOT transmit diseases by sucking blood from a human host?
A) lice B) fleas C) houseflies D) mosquitoes E) kissing bugs
Biology & Microbiology