The primary disease reservoir for plague is
A) fleas.
B) humans.
C) rats.
D) mosquitoes.
Answer: C
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Which of the following characterize the Calvin cycle?
A. Produces oxygen B. Produces glucose as an end product C. Produces carbon dioxide and water D. A process that requires light E. Nitrogen is fixed into an organic form
A human population with an age structure diagram that is narrower at the base than at the top would
have ____.
a. zero population growth b. r < 0 c. r > 0 d. been affected by density independent factors e. (K ? N)/K < 1
A(n) ________ has been used to estimate that humans began to wear clothing between 83,000 and 170,000 years ago
A) parsimony analysis B) outgroup comparison C) molecular clock
At this point in time, scientists believe the vast majority of the domain Bacteria have been discovered
Indicate whether the statement is true or false