Skeletal muscle fibers
A. can contract but are not extensible or excitable.
B. increase dramatically in number after birth.
C. are found in the walls of the stomach.
D. possess striations.
E. do not require nerve innervation to contract.
Answer: D
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a) hemorrhagic anemia. b) aplastic anemia. c) megaloblastic anemia. d) pernicious anemia. e) iron deficiency anemia.
The epididymis is a _____ and it _____
A) stage of spermatogenesis; forms two sperm cells and semen B) tightly coiled tube on the outside of the testis; is the location for sperm maturation C) compartment inside a testis; secretes testosterone and forms sperm D) compartment that contains seminiferous tubules; ejaculates sperm
Which of the following is NOT part of the limbic system?
A. Angular gyrus B. Cingulate gyrus C. Hippocampus D. Amygdaloid body
Name the layer from which fingernails and toenails are derived.
A. Dermis B. Subcutaneous tissue C. Epidermis