All of the following are adaptations associated with flight that are first seen in Archaeopteryx
EXCEPT
a. feathers.
b. a wishbone.
c. backward facing claws for perching.
d. a toothed beak.
D
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Cage exclusion studies have demonstrated that polychaetes are a common prey item of:
a. gray whales. b. crabs. c. fish. d. both b and c. e. a and b only.
The large-scale patterns, trends, and rates of change among groups of species is
a. microevolution. b. macroevolution. c. species variation. d. population shift. e. population drift.
Viral proteins from which of the following are most likely to bind pRB, increasing the risk for cancer?
A. Epstein-Barr virus B. Herpes simplex virus C. Hepatitis B virus D. Human papillomavirus E. Rous sarcoma virus
All animals
A) are prokaryotic. B) are heterotrophic. C) have cell walls made of chitin. D) obtain food by absorption.