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How does a gymnosperm prevent itself from pollinating the same tree

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.) chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?