The tetrapods include:a
fish, amphibians, reptiles, and mammals.
b. lancelets, cartilaginous, and bony fish.
c. amphibians and reptiles.
d. amphibians, reptiles, birds, and mammals.
e. echinoderms and chordates
d
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A chromosome that results when the centromere splits in the wrong plane during meiosis, forming identical arms, is a(n)
A) ring chromosome. B) metachromosome. C) parachromosome. D) isochromosome.
When the prey population is below the predator isocline, the predator population is
a. increasing b. decreasing c. neither increasing nor decreasing
Match the following bacterial structures with the proper function
A) Flagellum 1) long, thin appendage used for motility B) Pilus 2) hollow appendage used to transfer DNA between bacterial cells C) Fimbriae 3) hairlike extensions that allow adhesion to surfaces.
Allergic reactions are triggered by the production of ____ antibodies instead of ____ antibodies at the first exposure to
the allergen. a. IgA; IgD b. IgA; IgE c. IgE; IgM d. IgE; IgG e. IgG; IgE