Why is it necessary to classify plants?​

Plants are classified based on these 3 characteristics: The evergreen plants are plants that retain leaves at all times.

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The main purpose of classifying plants is to ensure that the right plants are correctly named, grouped and identified. Plants are classified based on these 3 characteristics: The evergreen plants are plants that retain leaves at all times (all year round).

Explanation:

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the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.