The Leaves of Deciduous Trees Change Color in the Fall

question 25

Multiple Choice

The leaves of deciduous trees change color in the fall because _______.

• A) trees substitute other pigments-better adapted for cool fall temperatures-for chlorophyll at this time
• B) chloroplasts die in the fall and are replaced with other organelles using other pigments
• C) trees produce other pigments in addition to chlorophyll; as chlorophyll production is shut down, the other pigments can be seen
• D) B and C
• E) A, B, and C

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