Which of the following is a characteristic of mollusks in the class Polyplacophora?
a. a broad, ventral foot
b. two pairs of nephridia
c. vivid coloration
d. hinged valves
a. a broad, ventral foot
Biology & Microbiology
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Which latitude will have the greatest species diversity?
a. 42o b. 12o c. 90o d. 31o e. 62o
Biology & Microbiology
The dinosaurs are thought to have gone extinct due to an asteroid strike. How would this impact on
population growth be described? What will be an ideal response?
Biology & Microbiology
Which portion of the lymphatic system is the major site of antibody production?
a. spleen b. all lymph nodes c. liver d. thymus gland e. thoracic duct
Biology & Microbiology
In the classic study by Weingarten, the rats ________ each time the buzzer and light were presented during the test phase.
(a) exhibited conditioned fear (b) ate (c) avoided the food (d) vomited
Biology & Microbiology