Question

Enlist two features of coelenterate and give two examples

Answer 1

hello friend,
I am giving you detailed information about characteristics of coelenterate.
Hope it will help you.

All coelenterates are aquatic, mostly marine. The bodyform is radially symmetrical. The body has a single opening, the hypostome, surrounded by sensory tentacles equipped with either nematocysts or colloblasts to capture mostly planktonic prey. These tentacles surround a spacious cavity called the gastrovascular cavity or coelenteron. Digestion is both intracellular and extracellular. Respiration and excretion are accomplished by simple diffusion. A network of nerves is spread throughout the body. Many Cnidaria exhibit polymorphism, wherein different types of individuals are present in a colony for different functions. These individuals are called Zooids. These animals generally reproduce asexually by budding, though sexual reproduction does occur in some groups.

e.g; Cnidaria, Ctenophora

Answer 2

Write the main features of Phylum Coelenterate (Cnidaria).

1. They are Aquatic & Marine.
2. They are diploblastic.
3. Two types of body - Polyp & medusa.
4. They are cylindrical without gonads.
5. They are umbrella like structure.

Ex: Cnidaria & Ctenophores