The organisms living on the bottom of the ocean are collectively referred to as
A) nekton.
B) benthos.
C) meiofauna.
D) epifauna.
B
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Animals with bilateral symmetry typically have (select all that apply):
A. distinct front (head) and back (tail) ends. B. specialized sensory organs clustered at the front, or head, end. C. specialized appendages along both sides for locomotion. D. specializations for rapid locomotion in all directions. E. complex behavior.
Plant pollinators include
a. bees. b. butterflies. c. flies. d. beetles. e. all of these.
Which of the following is a disease caused by a pleiotropic gene?
a. sickle-cell anemia b. pernicious anemia c. aplastic anemia d. iron deficiency anemia e. hemolytic anemia
What would be the karyotypic designation of a female with trisomy for the X chromosome?
____________________ Fill in the blank(s) with the appropriate word(s).