Which statement accurately describes the properties of sound?
A. The frequency of a sound determines the loudness.
B. The amplitude of a sound determines its pitch.
C. The amplitude of a sound is the number of waves per second.
D. A soft sound has a greater amplitude than a loud sound.
E. A high note and a low note with the same amplitude are equally loud.
Answer: E
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Within the framework of an experiment, describe the
a. independent variable: b. dependent variable: c. controlled variables:
Which of the following animals DOES NOT have a compound eye?
A. crayfish B. crab C. squid D. bee E. butterfly
What do you predict would happen if flower growth became indeterminate?
A. The flowers would lose their distinct shape. B. The flower size would be reduced. C. The flowers would be enormous. D. Pollen and seed production would cease.
The mutant fly in Figure 17-2 illustrates all of the following except:
a. the existence of homeotic genes in Drosophila.
b. the concept of nuclear equivalence.
c. mutations in genes affecting segment identity.
d. an altered phenotype due to a mutant allele.
e. a structure containing many nuclei residing in a common cytoplasm