Which of the following statements is NOT true?
A. Frogs and toads have external fertilization whereas salamanders and caecilians have internal fertilization.
B. Frogs, toads, and most salamanders have four legs whereas caecilians are legless.
C. Frogs, toads, and salamanders lay eggs whereas some caecilians lay eggs and others give birth to live young.
D. Salamanders and caecilians have external tails whereas frogs and toads do not.
E. Adult frogs, toads, and salamanders are predators on insects and other small animals whereas caecilians are herbivores.
E. Adult frogs, toads, and salamanders are predators on insects and other small animals whereas caecilians are herbivores.
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The major difference between the vacuoles of eukaryotes and the inclusion bodies of prokaryotes is that the former are membrane-bound, whereas the latter are not.
Answer the following statement true (T) or false (F)
Schooling is
a. a feeding behavior. b. fin nipping. c. fish swimming in synchrony. d. a mating behavior.
Carbon dioxide is transported in human blood primary in which of the following ways?
A. As oxyhemoglobin B. As bicarbonate ions C. Attached to plasma proteins D. Attached to the amino groups of hemoglobin E. Attached to the heme groups of hemoglobin
Animal viruses can be grown in all of the following except
A) live animal hosts. B) E. coli cells. C) embryonated eggs. D) tissue culture. E) HeLa cells.