It's obviously a Parasite. It lives off of its Host's food, which usually leads to the malnutrition of the Host, & the nourishment of the Tapeworm.

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Actually its all for me cause:
1.its a living indicator.
2.its a Parasite.
3.its a Producer cause 'Producer means its the first consumer.

except to Mutualist or 'Mutualism' cause mutualit or mutualism is a different species that exist in a relationship in which individual benefits from the activity of the other.
ღBut for me its letter ''D'' Producer because worm is one of the kind of first consumer or producer.

Hope it helps..^-^..

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