Chelicerates include the extinct trilobites, the modern-day horseshoe crab, and

A. lobsters.
B. nematodes.
C. insects.
D. spiders and mites.


Answer: D

Biology & Microbiology

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Assume that one counted 67 plaques on a bacterial plate where 0.1 ml of a 10-5 dilution of phage was added to bacterial culture. What is the initial concentration of the undiluted phage?

What will be an ideal response?

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Which types of plants undergo the most photorespiration?

A) C2 plants B) C3 plants C) C4 plants D) CAM plants

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This mammal lays eggs rather than giving birth to its young

1.True 2.False

Biology & Microbiology

The shared primate characteristic depicted in Figure 22-1 is:


a. a prehensile appendage.
b. an opposable thumb.
c. an enlarged foramen magnum.
d. four grasping digits.
e. an opposable thumb.

Biology & Microbiology