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Lower phyla in the animal kingdom such as Cnidarians, Porifera, and Ctenophora.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoAcoelomate animals, for example, flatworms, do not have a body cavity. Their organs are held in place by mesodermal tissues that are semi-solid.
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What type of body cavity does a jellyfish have?
Pisces or fish have true internal body cavity.
What is a coelom body plan?
Coelom is a greek work literally meaning body cavity.A body cavity is a space between the alimentary canal and body wall. When it is lined by a layer of mesoderm, then it is called a true coelom. Depending upon this the animals are classified intoAcoelomates - Animals which don't have body cavity. Eg: PlatyhelminthesPseudocoelomates - Animals in which the body cavity is formed from embryonic blastocoel. This blastocoel acts as a body cavity in adults. Eg: AschelminthesSchizocoelomates - Animals in which the body cavity formed by splitting of mesoderm. Eg: Annelida, Arthropoda and MolluscaEnterocoelomates - Animals in which body cavity is derived from entero-mesoderm. Eg: Echinodermata, Hemichordata and chordata.
What is a coelum?
the body cavity that surrounds the gut in invertebrates
The two principal body cavities are?
There are two principal body cavities the dorsal (posterior) body cavity and the ventral (anterior) body cavity.
What type of body cavity do lancelets have?
Acoelomate
What type of body cavity is a clam?
mantle
Animals with a body cavity lined with tissue from the mesoderm are?
Animals that have three layers of embryonic tissue with organs in a cavity completely lined with the mesoderm are called triploblastic animals.
What are four characteristics that complex animals tend to have?
Complex animals tend to have specialized cells, bilateral symmetry, cephalization, and a body cavity.
Meaning false body cavity?
Body cavities in organisms are referred to as coeloms, and animals that have them are called coelomates. An organism that has a false body cavity, or a psuedocoelom, are called psuedocoelomates.
Is the type of body cavity shared by all mollusks is a pseudocelom?
The type of body cavity shared by all mollusks is pseudocoelom is a false statement. The correct answer is coelom.
What animals are eucoelomate?
eucoelomate (true guts) possessing a cavity coelom between the body wall and the gut. (zoology)
What type of gland is associated with a duct or body cavity?
Exocrine.
