Contraction of the fibers labeled A in Figure 40-2 results in:
a. elongation of the body.
b. elongation of the tentacles.
c. elongation of the gastrovascular cavity.
d. shortening of the body.
e. expansion of the pedal disk.
D
Biology & Microbiology
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What single attribute determines that a human fetus is male?
A) the presence of a Y chromosome B) the absence of a Y chromosome C) the presence of two X chromosomes D) the absence of a second X chromosome
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When does replication of DNA occur?
a. during the S phase b. during the G1 phase c. during the prophase d. during the G0 phase
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The stain shown in Image A is dependent on the organism's:
a) Waxy capsule b) Carbohydrate component c) Argyrophilic character d) Internal structure
Biology & Microbiology