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(A) 0%
(B) 25%
(C) 50%
(D) 75%
(E) 100%
21. Archaeopteryx is important to the study of
evolution because
(A) it is believed to represent the evolution-
ary link between the kingdom Plantae
and the kingdom Fungi
(B) it is believed to represent the evolution-
ary link between the class Reptilia and
the class Aves
(C) it is believed to represent the evolutionary
link between the sponges and the molluscs
(D) it represents the last known evidence of
the dinosaurs
(E) it represents the first known terrestrial
animal
22. Enzymes accomplish each of the following
EXCEPT
(A) increase the rate of the forward reaction
(B) increase the rate of the reverse reaction
(C) decrease the activation energy of the
reaction
(D) increase the activation energy of the
reaction
(E) allow reactions to occur more readily
23. High energy molecules involved in the dark
reactions of photosynthesis include which of
the following?
I.
ATP
II. NADH
III. NADPH
(A)
I only
(B)
II only
(C)
I and III only
(D)
II and III only
(E)
I, II, and III
24. The “all-or-none response” refers to which of
the following?
(A) Flocking defense scheme utilized by
various birds
(B) Nondisjunction
(C) Fitness of an animal
(D) Expressivity of a phenotype
(E) Transmission of neural impulses
25. Bile, a complex fluid that assists in the diges-
tion of fatty substances, is produced by the
(A) gallbladder
(B) small intestine
(C) pancreas