Primary consumers eat ________.
A. other primary consumers
B. tertiary consumers
C. producers
D. secondary consumers
Answer: C
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Which of the following is mismatched?
a. some free nerve endings; itching b. some free nerve endings; temperatures above and below those of the normal body core c. bulbs of Krause; thermoreception d. Meissner’s corpuscles; rapid-frequency vibrations e. Ruffini endings; steady touch and thermoreception
In molecular biology, the term DNA cloning refers to the process of
A) engineering and editing DNA for specific purposes. B) generating many identical cells for the purpose of research. C) generating many copies of specific DNA fragments. D) genetically modifying and making many copies of an entire organism. E) generating many copies of specific DNA sequences using the polymerase chain reaction.
The process of lowering the activation energy of a chemical reaction is called ________.
Fill in the blank(s) with the appropriate word(s).
Light rays that pass through the edge of a curved lens will be refracted more than those that pass through the center
Indicate whether the statement is true or false