Question

which of the following is first eucoelomate ? 1 earthworm 2pila 3 limulus 4 balanoglossus

Answer 1

earth warm is first eucoelomate

Answer 2

Answer:

The first eucoelomate organism is Earthworm (Annelida).

Explanation:

• The space between the alimentary canal and the body wall is filled with fluid. Mesoderm lines every side of it.
• Various groups of animals have various coelom structures and modes of growth.
• There is no coelomic cavity in acoelomates. Parenchyma covers the entire area around the internal organs.
• It is referred to as such since it is neither produced in mesoderm nor is it lined by mesodermal peritoneum. Pseudocoelom allows the internal organs to move around freely.
• They are real coelomates because mesoderm lines the coelom both inside the body wall and around the stomach.
• The peritoneum, a type of mesodermal epithelium, lines the coelom.

Hence, option 1 is correct.

#SPJ2