Which neurotransmitters are involved in Parkinson's disease?
a. dopamine and norepinephrine
b. serotonin and acetylcholine
c. dopamine and serotonin
d. norepinephrine and GABA
e. serotonin and norepinephrine
A
Biology & Microbiology
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Many retroviral-like transposons found in the human genome may have been transferred from viruses to mammals via ______ gene transfer.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
The taxonomic category that includes species of apes, humans, and their ancestors is the ___________
A. hominids D. hominanies B. hominins E. homanities C. hominoids
Biology & Microbiology
A modification that helps equip organisms for their way of life is a(n)
Biology & Microbiology
Which of the following hormones promotes fruit ripening and dropping of leaves?
A) auxin
B) ethylene
C) gibberellin
D) abscisic acid
Biology & Microbiology