Why do plants require sunlight?
A) Sunlight helps plants break down their food products so they can extract the energy stored in them.
B) Sunlight energy can be used by plants to reduce the carbon atoms in carbon dioxide.
C) Sunlight oxidizes carbon dioxide and water to form glucose.
D) Sunlight can be used directly by plants to perform a number of physiological processes.
Answer: B
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Mitosis is involved in
a. asexual reproduction and growth. b. asexual reproduction and genetic diversity. c. sexual reproduction and growth. d. sexual reproduction and genetic diversity.
What is the pollen to ovule ratio for species B?
a. 100 b. 10,000 c. 100,000 d. 100,000,000
During which of the following time periods does a CAM plant take in atmospheric CO2?
a. daylight only b. in darkness only c. noon to midnight d. midnight to noon e. all 24 hours of a standard calendar day
Refer to Figure 46-1. The structures receiving air in figure 1 are known as:
a. anterior air sacs. b. parabronchi. c. spiracles. d. alveoli. e. tracheae.