Alternation of generations: Difference between revisions

Sometimes the cycle is modified or incomplete. [[Anthozoa]] is another division of the Cnidaria., Itwhich contains [[sea anemone|sea anemones]] and [[coral|corals]]. TheIn Anthozoathe is specialanthozoa, because there is noonly medusaa polyp stage, onlyand ano polypmedusa stage.

The [[box jellyfish]] form another small group in the Cnidaria. They are known for two facts: Several of the species are very dangerous, because they make a very effective [[poison]]. Secondly, in the box jellyfish, the polyp transforms into the medusa. In some cases, only part of the polyp transforms, the part that is left regenerates to form a new polyp.

In the [[stalked jellyfish]], there is only a medusa.<gallery>