The net direction that an ion or molecule moves is
a. dependent upon the size of the molecule.
b. unpredictable because movement is random.
c. determined by the temperature of the medium.
d. determined by the membranes in the vicinity.
e. the result of concentration differences.
Answer: e
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1.True 2.False
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a. material decomposed in a year. b. producers. c. living organisms. d. consumers. e. decomposers.
The structural organization of muscle fibers makes it possible to produce contractile force
a. What is the fundamental contractile unit of skeletal muscle? b. What are the names of the bands, lines and zone of the contractile unit of skeletal muscle? c. Each of the contractile unit region names in (b) contains a letter. What does each of these letters stand for? d. What changes occur in the contractile unit regions during contraction? What will be an ideal response?
A classic example of classical conditioning is _____.
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