Which animal has a closed circulatory system?

a. clam
b. dog
c. spider
d. snail
e. insect


Answer: b

Biology & Microbiology

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The manner in which chromosomes align themselves along the metaphase plate is completely random. This quality

makes ____ possible.

a. metaphase I b. synapsis c. meiosis d. fertilization e. independent assortment

Biology & Microbiology

An ecologist that studies groups of populations that occur together in one area is a(n)______

a. behavioral ecologist d. ecosystem ecologist b. population ecologist e. organismal ecologist c. community ecologist

Biology & Microbiology

Active immunization ____

a. involves receiving antibodies from another individual b. utilizes the inflammation response c. is given only to children d. results in memory cell formation e. involves exposure to an allergen

Biology & Microbiology

______ ______is a process by which bacteria use chemical signally for communication, and has been found to play a role in establishing an effective microbial attack against a host

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology