Archaeopteryx is an important link between
a. mammals and birds
b. lizards and birds
c. dinosaurs and birds
d. crocodiles and birds
e. non-flying birds and flying birds
C
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What is responsible for termination of transcription in eukaryotic protein-coding genes?
A) a polyadenylation signal or poly(A) B) a termination loop composed of guanine C) a sigma factor D) a portion of the polymerase holoenzyme E) three nonsense mutations in sequence
Natural passive acquired immunity would result from:
A) having the measles. B) ingesting colostrum. C) receiving a gamma globulin injection. D) receiving a vaccine.
Fungi
A. take in food by phagocytosis. B. generate ATP and reducing equivalents by photosynthesis. C. absorb nutrients from the environment. D. All of these choices are correct.
Concerns about the small size of humpback whale populations led to a collaborative study of their
a. geographic distribution. b. adaptive characteristics. c. population growth rates. d. environmental changes. e. genetic variability.