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Answer: Green Algae are closely related to plants.
Explanation: Green Algae are closely related to plants because of they possess photosynthetic pigments as plants.
Green algae and plants are closely related in that they can manufacture their own food from nutrients and sunlight through the process of photosynthesis
Green algae also possess the same carotenoids and chlorophyll a and b as land plants which make them closely related.
Kelps don't have these characteristics.
Answer:
the Frequency remains constant
