Question

What is the primary difference between a coelom and a hemocoel?

a. their development origin.
b. a coelom occurs in triploblastic animals, and hemocoel occurs in diploblastic animals.
c. the manner ion which they cushion the internal organs.
d. a coelom arises in the ectoderm, and a hemocoel arises un the endoderm.

Answer 1

A coelom is a fluid-filled cavity that cushions the internal organs and is lined by mesodermal tissue, while a hemocoel does not completely surround the organs and contains hemolymph.

Step-by-step explanation:

The primary difference between a coelom and a hemocoel is c. the manner in which they cushion the internal organs. A coelom is a fluid-filled body cavity completely lined by tissue derived from mesoderm that lies between the body wall and the digestive tract, found in coelomates. It provides cushioning to internal organs, allowing for growth and movement, and houses systems such as the circulatory system. In contrast, a hemocoel, which is associated with hemolymph instead of true blood, serves as a primary body cavity in certain invertebrates and does not entirely surround the organs but still provides some level of protection and a space through which fluids can move.

Answer 2

The main difference between a coelom and a hemocoel is how they cushion internal organs, with the coelom being a mesoderm-lined body cavity offering better protection and organ motility.

Step-by-step explanation:

The primary difference between a coelom and a hemocoel is c. the manner in which they cushion the internal organs. A coelom is a fluid-filled body cavity completely lined with mesoderm that provides space for the diffusion of gases and nutrients and houses organs such as the kidneys, spleen, heart, and lungs.

Coelomates have a true coelom that forms within the mesoderm, offering cushioning and flexibility essential for organ protection and animal motility. In contrast, a hemocoel is a body cavity derived principally from the blastocoel and consists of the open circulatory system of some invertebrates, which does not offer the same level of organ encapsulation and movement as the coelom.