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What else can I help you with?
Do sponges have nerves?
No sponges lack organized multicellular organs, such as nerves and muscles.
What do sponges lack that make them more primitive and simpler?
Just finshed it on a test. Sponges lack a digestive track, symmertical plan, and nerce cells.
What phylum do sponges blong to?
Sponges belong to the phylum Porifera. They are multicellular aquatic animals that lack tissues and organs.
Are tubular sponges vetebrates or invetebrates?
Invertebrates, due to lack of a spine.
What system do the enidaria and comb jellies have that sponges lack?
tru tissue
Why are sponges classified as an animal?
Sponges are classified as animals because they are multicellular, heterotrophic organisms that lack cell walls. They also have specialized cells and tissues, even though they lack complex organ systems.
What is the phylum of scypha?
The phylum of scypha is Porifera, also known as sponges. Sponges are simple, multicellular aquatic animals that lack true tissues and organs.
Name the only type of animal that lack groups of cells that form tissues?
The sponges.
What system do the cnidaria and comb jellies have that sponges lack?
Despite neither jellies nor sponges having central nervous systems, jellies have true tissues. The cells in jellyfish are also bound together, unlike in sponges.
Almost all animals except what have either radial or bilateral symmetry?
Almost all animals except sponges have either radial or bilateral symmetry. Sponges belong to the phylum Porifera, characterized by their lack of symmetry.
Are sponges diploblastic?
Yes. they have two germ layers - or a two - layerd body wall. The epidermis and gastrodermis. Actually sponges lack true tissues and are therefore not diploblastic.
Organisms that lack symmetry are termed?
Asymmetrical are organisms, such as sponges, that have no true symmetry.
