1. Is development direct or indirect in cnidaria and chondrichthyes and cyclostomata?
  2. Is fertilization external or internal in cnidaria, annelida and cyclostomata?

Asked by imtiyazmulla68 | 30th Mar, 2018, 11:10: AM

Expert Answer:

Cnidaria- development is indirect

Cyclostomata- development is indirect

Chondrichthyes- development is indirect


Cnidaria- external fertilisation

Annelida- internal fertilisation

Cyclostomata- external fertilisation

Answered by Sivanand Patnaik | 30th Mar, 2018, 05:35: PM