The nitrogenous base that is in RNA but not in DNA is
A) thymine.
B) thiamine.
C) uracil.
D) urea.
C) uracil.
Biology & Microbiology
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__________ power(s) the movement of water between reservoirs
a. Clouds b. Glaciers c. Temperature changes d. The sun
Biology & Microbiology
The ability to extend a leg originates from:
a. contraction of ligaments b. contraction of tendons c. contraction of a muscle d. lengthening of a muscle e. relaxation of a synovial joint
Biology & Microbiology
The urethra ________.
A. is a structure where semen is stored B. adds fluids to semen C. is where sperms are produced D. is a tube that conveys both urine and semen
Biology & Microbiology
Mitosis and cytoplasmic division function in
a. growth. b. repair of damaged tissue. c. replacement of worn-out cells. d. asexual reproduction. e. all of these.
Biology & Microbiology