Parasite:

1. The organism, which depends upon other organism for its nourishment and growth, is known as parasite.

2. It has intracellular digestion.

3. It causes harm to the organism.

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Saprophyte:

1. The organism, which grows on dead and decaying material for its growth, is known as saprophyte.

2. It shows extracellular digestion.

3. It does not depend on living host.