Marine coelenterates exist in two life forms: a polyp attached to a substrate and a free-living planktonic jellyfish.

Marine coelenterates exist in two life forms: a polyp attached to a substrate and a free-living planktonic jellyfish. What are the benefits of this phenomenon for coelenterates?

1) the medusoid form serves for the settlement of young polyps and their larvae;
2) the habitation of jellyfish and polyps at the bottom or in the water column reduces competition for food supply and habitats.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.