The crocodile best adapted to a marine lifestyle is:
a. the Asian saltwater crocodile.
b. the American crocodile.
c. the alligator.
d. the Nile crocodile.
e. the caiman.
A
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The energy of the sun is converted into chemical energy during ________.
A. denitrification B. ammonification C. nitrification D. nitrogen fixation E. photosynthesis
The intestinal parasite Ascaris lumbricoides currently infects more than one billion people. Which group is it in?
a. flatworms b. roundworms c. annelids d. cnidarians e. arthropods
In the inner ear, the ____ contains liquid and when sound hits it the water moves
Fill in the blank(s) with the appropriate word(s).
An animal, such as an arthropod, that transmits a pathogen from one host to another is a
A) Reservoir B) Carrier C) Fomite D) Source E) Vector