Over long segments of chromosomes, the linear order of mouse and human genes is preserved. This is called conserved ________.
Fill in the blank(s) with the appropriate word(s).
synteny
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This animal has spicules, digests its food in
collar cells, and is a hermaphrodite. This animal is ___.This animal has spicules, digests its food in collar cells, and is a hermaphrodite. This animal is ___.
a. a sea anemone b. a sponge c. an earthworm d. a clam e. more than one of these
The protein that carries oxygen in the red blood cells is
A. myoglobin. B. hemoglobin. C. actin. D. iron. E. insulin.
In places where the public sanitation is poor, people run the risk of getting
a. West Nile virus. b. cholera. c. SARS. d. anthrax. e. mononucleosis.
Which one of the following occurs when bright light hits the eye?
A) The muscle arranged circularly around the iris relaxes. B) The pupil dilates. C) The photoreceptors no longer respond to the light. D) The pupil decreases in size. E) The muscle arranged radially around the iris contracts.