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What characteristics do cnidarians have that poriferans do not have?

What characteristics do cnidarians have that poriferans do not have?

Compare the structural differences between Porifera and Cnidaria. Poriferans do not possess true tissues, whereas cnidarians do have tissues. Because of this difference, poriferans do not have a nerve net or muscle cells for locomotion, which cnidarians have.

How are cnidarians different from poriferans in body morphology and tissue complexity?

Poriferans do not possess true tissues, whereas cnidarians do have tissues. Because of this difference, poriferans do not have a nerve net or muscle cells for locomotion, which cnidarians have.

In what ways are the cnidarians more advanced than the poriferans?

Identify the common characteristics of phylum Cnidaria Cnidarians represent a more complex level of organization than Porifera. They possess outer and inner tissue layers that sandwich a noncellular mesoglea. Cnidarians possess a well-formed digestive system and carry out extracellular digestion.

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How are cnidarians more complex than poriferans?

Cnidarians (ni DER ee uhnz) belong to the phylum cnidaria. All of these have stinging cells. They are more complex than sponges because they have complex tissue, a gut, and a nervous system.

What characteristics do Poriferans and cnidarians share?

They both have/share similar body structures. Both can live in either fresh or sea water. Porifera are aquatic organisms known as sponges, while cnidarians are for example jellyfishes, corrals, etc. Poriferans are the most simple multicellular animal organisms.

How does the digestive process in Poriferans differ from that of cnidarians?

These organisms show a simple organization. Sponges have multiple cell types that are geared toward executing various metabolic functions. Cnidarians have outer and inner tissue layers sandwiching a noncellular mesoglea. Cnidarians possess a well-formed digestive system and carry out extracellular digestion.

How does a tissue in the Cnidaria differ from the cells in a sponge?

How does the digestive process in poriferans differ from that of cnidarians?

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How is Mesoglea in cnidarians different from Mesohyl in poriferans?

The main difference between mesoglea in cnidarians and mesohyl in poriferans is that mesoglea in cnidarians mainly composes of water and several substances including fibrous proteins, like collagen and heparan sulfate proteoglycans, whereas mesohyl in poriferans is a gelatinous matrix, mainly composing of collagen.

What characteristics do poriferans and cnidarians share?

Porifera and Cnidaria are organisms which share similar characteristics with one another. -They are both multicellular, they consist of many cells working together. They are both eukaryotic, they have DNA in the form of chromosomes contained within a distinct nucleus.

How are sponges and cnidarians alike and different?

Sponges have specialized cells and an endoskeleton, but they lack tissues and body symmetry. Many live on coral reefs and have symbiotic relationships with other reef species. Cnidarians are aquatic invertebrates in Phylum Cnidaria. They include jellyfish and corals, both of which have radial symmetry.

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What is one unique characteristic of the phylum Cnidaria?

Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers). These cells are present around the mouth and tentacles, and serve to immobilize prey with toxins contained within the cells. Nematocysts contain coiled threads that may bear barbs.