This animal has jointed legs, a complete
digestive system, and an open circulatory
system. This animal is ___.
a. a centipede
b. a butterfly
c. a horseshoe crab
d. a spider
e. all of these
E
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Proteins that bind to acetylated lysine residues in the histone tail contain:
A. bromodomains. B. DNA-binding domains. C. chromodomains. D. kinase domains. E. histone-fold motifs.
Kelp beds are considered important because they support large
a. fish. b. sea urchins. c. diverse communities. d. sea otters. e. sharks.
Which statement is least consistent with the beliefs of Lamarck?
a. “Fluida” moves into areas of the body in need of change. b. Acquired characteristics are inherited. c. Giraffes' necks have become longer in response to stretching. d. Environmental pressures bring about changes in organisms. e. Changes in an individual are not passed to its offspring.
The infectious disease that produces spastic paralysis is ____
a. botulism
b. sarcoma c. Duchenne muscular dystrophy d. tetanus e. myotonic muscular dystrophy