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Q: Why do echinoderms considered to be regressive group of animals?
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Related questions

What group is a starfish in?

It belongs to Echinoderms.


The first land animals belong to which group A arthropods B echinoderms C mollusks D vertebrates?

A. Arthropods


Which animal has radial symmetry?

Cnidarians are true radially symmetrical animals. They include jellyfish. Echinoderms (like starfish) also display radial symmetry. It is important to note that the larvae of echinoderms are bilaterally symmetrical and that Echinoderms evolved from a bilaterally symmetrical group.


Is conch an echinderm?

No, conchs are not echinoderms. Conchs are marine mollusks that belong to the gastropod class. Echinoderms are a different group of marine animals that include sea stars, sea urchins, and sea cucumbers.


Are echinoderms mammals?

No. Mammals belong to the vertebrates group and echinoderms are invertebrates, and have exoskeletons instead.


Which group of invertebrates have a water vascular system and tube feet?

Echinodermates possess a water vascular system.


Echinoderms is prokaryote or eukaryote?

Echinoderms are eukaryotes, an ideal exmple being statfish. This group of organisms are seen to have a rather rough epidermal surface.


What group does a star fish belong to?

echinoderms


Are seahorses in the echinoderms or cnidarians group?

Cnidaria


Why is the starfish in the echinoderms group?

asian starfish


Is a Star fish a mammal?

No, they are Echinoderms. They are not even true fish.


What group can you classify a vertebrate animal into?

Ok vertabrates are animals with no back bones witch can be: sponges, echinoderms, celentrates, ( idont remember how to spell it) that's all i can remember.