Green hydra (Chlorohydra viridissima) is green because of

Presence of chlorophyll containing chloroplasts

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Symbiosis with a green algae (Chlorella vulgaris)

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Symbiosis with red-green alga

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None of the above

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Solution

The correct option is B Symbiosis with a green algae (Chlorella vulgaris)
Green hydra also known as Chlorohydra viridissima is a symbiotic hydra which lives in association with green algae. This green alga lives inside the tissues of the hydra in a mutually benefitted relationship. The colours range from green to different shades of brown.
So, the correct answer is option B.

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Similar questions

How are 'non-green' forms of algae clubbed together with the green chlorophyllous algae in the same plant kingdom division?

Leaves look green because of the presence of chlorophyll. Chlorophyll absorbs the sunlight for photosynthesis.

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