C3 and C4 plants get their classification from the number of carbons in the first detectable product of carbon dioxide fixation. The C3 product is ________, whereas the C4 product is ________
A) glycerol; malate
B) triose phosphate; oxaloacetate
C) 3-phosphoglycerate; malate
D) ribose; phosphoenolpyruvate
E) 3-phosphoglycerate; oxaloacetate
Answer: E
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Which of the following best explains why bees aren't attracted to red flowers?
A. Bees perceive red as a warning signal. B. Bees can't see red. C. Red flowers usually are odorless. D. Red flowers do not produce nectar. E. Red flowers are imperfect and do not produce pollen.
How does an electromyograph (EMG) measure muscular contraction?
What will be an ideal response?
The photoreceptors of an earthworm are
located
a. on short antennae. b. on their body surface. c. in their eyes. d. near the tip of their tail. e. nowhere- earthworms do not have photoreceptors.
scientific method
What will be an ideal response?