How would you know that viruses were multiplying in a confluent lawn of E. coli on a solid culture medium?
a. There would be small zones of clearing in the bacterial culture.
b. There would be small blue spots on the bacterial culture.
c. The bacterial culture would grow faster
d. The bacterial colonies would swell.
Ans: a. There would be small zones of clearing in the bacterial culture.
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a. 2 b. 3 c. 4 d. 6 e. 12
When bass were removed from a stream, an algal bloom occurred. This is an example of
A) top-down control. B) bottom-up control. C) the null model. D) apparent competition.
The specificity of viruses to certain cells/tissues is known as:
A. Tropism B. Chemotaxix C. Pleiotrophic D. Transformation
Which situation is MOST likely to result in death by Bacillus anthracis?
a. being bitten by an insect b. petting a horse c. shoveling dirt on a windy day d. ingesting stale fruit