The space is called the coelum, and provides cushioning of the digestive system in earthworms and some other simple animals. It allows the organs to function independently of the external structures.
This space is called coelom or body cavity .
Enzymes
cyst
Ear!!
It's a vacuole.
This space is called coelom or body cavity .
Earthworms are Coelomates. They posses a true coelom, which is a body cavity that is completely lined by tissue derived from the mesoderm. This body cavity can either be empty air-filled space separating the digestive tract from the outer body wall, or fluid-filled space. Since triploblastic animals are defined as animals having three germ layers, earthworms is considered a triploblastic animal for it possess a endoderm, a mesoderm, and a ectoderm.
Acoelomates are animals that do not have a body cavity filled with fluid between the digestive tract and the body wall. Creatures like jellyfish (cnidarians) and flatworms (Platyhelminthes) are all acoelomates
fluid-filled cavity formed within the mesoderm of some animals
Coelomates are animals that have body cavities with complete linings, filled with fluid, that maintain the juxtaposition of the internal organs. All vertebrates, and most bilateral animals are coelomates.
yes. saliva is a digestive fluid.Yes
An acephalocyst is a larva filled with fluid, found in the tissues of man and lower animals, the immature stage of certain tapeworms.
A closed sac with fluid in it
A blastocoele is the fluid-filled cavity in the blastula.
The ventricles are the fluid-filled cavities of the brain.
I believe there is a substance protecting the digestive fluid from burning u from the inside perhaps mucus
Enzymes