A green plant is first grown in blue light and then in green light. The likely outcome for photosynthesis in both phases is
A. Decreased plant growth in blue light and no plant growth in green light.
B. No plant growth in blue light and increased plant growth in green light.
C. No plant growth in blue light and decreased plant growth in green light.
D. Increased plant growth in blue light and no plant growth in green light.
Answer: D
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a. complex life histories. b. increased biodiversity. c. higher productivity. d. more different species in an area. e. All of the above.
What digestive hormone stimulates gall bladder contraction?
A. insulin B. gastrin C. secretin D. gastric inhibitory peptide E. cholecystokinin
Which phylum includes members that are considered by many researchers to be the living plants most closely related to the first land plants, based on morphology and mitochondrial gene sequence data?
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To initiate a signal transduction pathway, a signal binds to a receptor protein usually located in the
A) nucleus. B) plasma membrane. C) ER. D) cytoplasm.