Which of the following is a heterotroph?
A) grass
B) a tree
C) a mushroom
D) a geranium
E) a cyanobacterium
C) a mushroom
Biology & Microbiology
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Trimming a shrub will make it become more bushy (have more lateral growth) primarily due to a reduction in the
amount of ____.
a. auxin b. ethylene c. abscisic acid d. gibberellin e. cytokinin
Biology & Microbiology
The ____ carries oxygenated blood
a. inferior vena cava b. pulmonary artery c. pulmonary vein d. superior vena cava e. lymphatic vessel
Biology & Microbiology
Actin is a structural subunit of
a. myosin. b. microtubules. c. intermediate filaments. d. microfilaments. e. all of these.
Biology & Microbiology
Enzymes function best in the body at a pH of
a. 6.0?6.5. b. 7.0?7.2. c. 7.35?7.4. d. 7.5?7.55. e. 7.2?7.5.
Biology & Microbiology