a. Tapeworms do not have a digestive tract
b. Protists have appendages like cilia and flagella
- Tapeworms are parasites and their body walls absorb the digested food from the host animal in which they live. So, they do not need a digestive tract.
- Protists have flagella, cilia which are all the forms of appendages. They are used for locomotion and, in the case of pseudopodia, for engulfing food (endocytosis).
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