Question

Difference between platyhelminthes and nematoda and annelida

Answer 1

Answer:

Here is your asking question

Explanation:

platyhelminthes : 1. the body is bilaterally symmetrical, means left halves and right halves have same design.

2. Three layer of cell that is why called triploblastic.

3. for ex - planaria, liverfluke.

Nematode : 1. the body is bilaterally symmetrical and triploblastic.

2. The body is cylindrical rather than flattened

3. for ex - parasites (filarial worms) or the worm in the intestine.

Annelida : 1. Bilaterally symmetrical and triploblastic.

2. They have body cavity, segmented body.

3. for ex - Earthworms and leeches.

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Answer 2

Answer:

Flatworms (phylum Platyhelminthes) are simple animals that are slightly more complex than a cnidarian. Roundworms (phylum Nematoda) have a slightly more complex body plan. Segmented worms (phylum Annelida) are the most complex animals with worm-like body plans. ... Worms are invertebrate animals with bilateral symmetry.