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Pre-Test
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1
Which one of the following is considered a limiting factor to the growth of green plants?
A)light
B)mineral nutrients
C)water
D)carbon dioxide
E)All of these are considered limiting factors to the growth of green plants.
2
Which of the following is not an adaptation to excessive light utilized by plants?
A)chloroplasts are able to change position
B)xanthophylls pigments are able to absorb excess light and disperse as heat
C)absorption of UV light by the cutilcle
D)chloroplasts are able to change position and absorption of UV light by the cutilcle
E)chloroplasts are able to change position, xanthophylls pigments are able to absorb excess light and disperse as heat, and absorption of UV light by the cutilcle
3
Which of the following types of prokaryotes are symbiotically associated with specific types of plants?
A)actinobacteria
B)cyanobacteria
C)proteobacteria
D)cyanobacteria and proteobacteria
E)actinobacteria, cyanobacteria, and proteobacteria





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