How do cniarians obtain their food? - ProProfs Discuss
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How do cniarians obtain their food?




This question is part of Overview of Invertebrates Chapter 27---Essay Questions
Asked by Libbyrose, Last updated: Oct 06, 2020

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h.Miaham

h.Miaham

h.Miaham
H.Miaham

Answered Sep 21, 2017

Cnidaria is a group of animals that usually include animals that live primarily in the water. These creatures have cnidocytes that are used to obtain their food. They also have mesoglea. This gel is located in a very microscopic layer in their bodies. Even though cnidarians are known for obtaining food through absorption, but they gain their food in other ways as well.

They take in water and small particles and animals that they get through the ocean water. Then they strain the water out and keep the food in. The final way that these creatures get their nutrients is from algae. Some of these cnidarians include jellyfish, sea anemones, corals and sea pens. Most of the species are considered to be hydrozoa.

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libbyrose1995

libbyrose

libbyrose1995
Libbyrose

Answered Aug 25, 2017

The cnidarians cnidocyte builds up a very high osmostic pressure and forces the nematocyst outward to spear their prey. The prey is then drawn back to the tentacle containing the cnidocyte.
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