One theory for the formation of proteins on the primitive earth suggests that they formed on
a. sedimentary rock.
b. igneous rock.
c. mud.
d. bodies of water.
e. clay.
E
Biology & Microbiology
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Which of the following traits is NOT characteristic of Caulobacter?
A) abundant in aquatic habitats rich in nutrients B) produces a cytoplasmic outgrowth (prostheca) C) attaches to surfaces in nature D) asymmetric cell division
Biology & Microbiology
Structures that are no longer needed but remain within the body are called
a. vestigial structures. b. nonuseful structures. c. ancient structures. d. defunct structures. e. retrostructures.
Biology & Microbiology
After many years of testing, an hypothesis becomes accepted as a
a. problem. b. theory. c. conclusion. d. variable. e. control.
Biology & Microbiology
The absence of significant contamination is referred to as
A. sepsis. B. bacteriostasis. C. asepsis. D. biocide.
Biology & Microbiology