Question

20.1) Write two characteristics of each with example . a.nematoda b)Gymnosperm. c)Pisces​

Answer 1

Answer:

The nemtoda - 1 their body is cylindrical 2 they are triploblastic. Eg - ascaris, wuchereria.

Gymnosperm - 1 they are flowering plants 2 tey are evergreen and woody. Eg - pinus and cycas

Pisces - 1 they are cold blooded 2 have 2 chambered hearts eg pterois and sting ray