Treatments for depression often include drugs that help correct imbalances in the levels of
A) serotonin.
B) acetylcholine.
C) nitric oxide.
D) epinephrine.
Answer: A
Biology & Microbiology
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Name the fluid-filled interior of the chloroplast.
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Which hormone allows muscle cells to store glucose?
a. growth hormone b. estrogen c. insulin d. glucagon e. testosterone
Biology & Microbiology
Rhizobia help plants meet their ____ requirements by producing ____
a. nitrogen; NH3 b. phosphorus; PO4 c. potassium; K2O d. nitrogen; NO3 e. phosphorus; ATP
Biology & Microbiology
TRAIT SPECIESABCDE101111200111310101401111500001610101 The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which species would you designate as the outgroup?
A. 4 B. 1 C. 3 D. 5 E. 2
Biology & Microbiology