The vibration of an ear drum is an example of ________ energy.
A. kinetic
B. radiant
C. elastic
D. potential
Answer: A
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The main function of a serous membrane is to
A) reduce friction. B) protect organs. C) allow blood to pass. D) hold organs together. E) fill empty spaces.
Identify the correct descriptions of fibrous joints.
A. united by cartilage B. united by fibrous tissue C. classified functionally as diarthroses D. having a limited range of motion E. having no joint cavity F. possessing a joint cavity
The blood vessel which is a part of corpus malpighii is called:
(a) a. trabecularis (b) aa. pulpae albae (c) aa. lymphnoduli (centrales) (d) aa. penicillares
The ________ completely encloses the embryo and provides it with a stable environment
A) chorionic villus B) amnion C) yolk sac D) allantois E) chorion