In Yellowstone National Park, wolves were hunted to extinction in the 1920s. A current restoration project has reintroduced wolves to Yellowstone National Park
Predict the response of the Yellowstone ecological community if wolves are a keystone species. A) Species richness should decrease.
B) The relative abundances of each species should become more unequal.
C) Species diversity should decrease.
D) Species richness should increase, and the relative abundances of each species should be about equal.
D
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The structure involved in equalizing the pressure between the ear and the atmosphere is represented by which number?
A) 7 B) 1 C) 8 D) 9 E) 10
Which of these processes of viral multiplication is most likely to damage the host cell?
a. Release of nonenveloped viruses b. Uncoating c. Reverse transcription of retroviral RNA d. Release of enveloped viruses e. Viral entry into host cells by fusion
During the prep reaction, oxidation occurs as ___ is removed
Fill in the blank(s) with the appropriate word(s).
What must occur for bacterial conjugation to take place?
a. The cells must come into contact with each other. b. Each cell must contain a plasmid. c. One of the cells must be E. coli. d. The cells must transfer RNA.