Question

non -chordates is- a.porifera to platyhelminthes bf. porifera to annelida b.porifera to echinoderms.d.none​

Answer 1

Answer:

c. porifera to echinoderms

Answer 2

b.porifera to echinoderms is the correct answer.

1. Non chordates refers to the animals that lack notochord. Notochord is rod like elastic structure that supports the body.
2. The organisms lacking notochord have few special features like they are worm like, they live in marine environment and comprise of organ system level of organization in their body.
3. They show open circulation system and external fertilization.