A structure of a flower that can normally be expected to produce male sex cells is the
A. anther.
B. petal.
C. filament.
D. stigma.
A. anther.
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An example of an animal with a long digestive tract and molars with large, ridged surfaces is a ____
a. cat b. deer c. dog d. shark e. tiger
Which of the following is not true of coliforms?
A. Coliform counts are not specific for a particular species of bacteria. B. They include E. coli, Enterobacter, and Giardia. C. They are gram-negative, lactose-fermenting, and gas-producing. D. Finding coliforms in water indicates fecal contamination.
In a defined medium, _____.
a. the exact chemical composition of the medium is known b. agar is available for microbial nutrition c. blood may be included d. organic chemicals are excluded
Indicate whether the response is due to parasympathetic or sympathetic action.
A. decreases heart rate B. decreases adrenal gland secretions C. slows digestion D. inhibits urination