Organic compounds break down spontaneously in the presence of ____; hence, life probably never
would have emerged if the ancient atmosphere had been the same as the present one.
a. carbon dioxide
b. hydrogen
c. oxygen
d. nitrogen
e. silica
C
Biology & Microbiology
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Animals that mark and defend a home range against other animals are exhibiting
A. symbiotic behavior. B. territorial behavior. C. imprinting. D. habituation. E. taxis behavior.
Biology & Microbiology
The hormone ____ is involved in a positive feedback cycle that results in strong uterine contractions during labor
a. estrogen b. oxytocin c. cortisol
d. progesterone e. prolactin
Biology & Microbiology
Ants, termites, and some other insects as well as
mole-rats are __________. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
What are the functions of the TRAMP complex in yeast?
What will be an ideal response?
Biology & Microbiology