Question

Enumerate the characteristic of class that contain organisms with two types if symmetry in their life cycle

Answer 1

starting with name of that phylum ; its phylum echinodermata

characteristic features-

1. bilateral symmetry in earlier stages of live while in adult stage has entaradial symmetry

2. water vascular system

3. has sissor like structures for cleaning called_ (cannot recall if someone remembers lease tell/0

4. deutrostomes (formation of anus before mouth)

5. triplolastic; schizocoelomic formation

6. larvae known as pletues  larva