Many marine mollusks have distinctive larvae that have their bodies encircled by a row of cilia. These larvae are called
A. polyps.
B. zoecia.
C. miracidia.
D. trochophores.
E. planulae.
Answer: D
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The double helix of a relaxed closed-circular DNA molecule has one turn of the double helix per ______________base pairs
A. 1 B. 7.5 C. 8 D. 10.5 E. 12.5
Mendel’s experiments led to which of the following findings?
a. Traits are inherited as independent events. b. Recessive traits are never physically observed. c. Dominant traits eventually become latent. d. An offspring’s traits are a blend of parental traits.
The monarch butterfly is poisonous to birds; therefore, birds avoid eating them. Viceroy butterflies look very similar
to monarch butterflies, but are not poisonous. Because they look like monarch butterflies, birds also do not eat viceroy butterflies. This is an example of ____.
a. resource partitioning b. competitive exclusion c. mimicry d. camouflage e. commensalism
The word hormone comes from the Greek word meaning
a. target. b. response. c. secretion. d. set in motion. e. internal gland.