A food ________ results from ingestion of whole microbial cells that target the intestine.
Fill in the blank(s) with the appropriate word(s).
infection
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Francisella tularensis is transmitted to humans by
A. biting arthropods. B. inhalation of aerosols. C. direct contact with infected tissue. D. All of the choices are correct.
The development of a new species is called __________.
Fill in the blank(s) with the appropriate word(s).
A small population of a species invades an island where the species is not found. If the population becomes a new species, this is an example of:
a. the dumbbell model of allopatric speciation. b. the peripheral isolate mode of allopatric speciation. c. sympatric speciation. d. parapatric speciation.
The fact that energy transformations increase the amount of entropy is the basis of which of the following?
a. cell theory b. first law of thermodynamics c. second law of thermodynamics d. oxidation-reduction reactions