Question

Do all cnidarians exhibit metagenesis at some point of their lives?​

Answer 1

Answer:

asexual and sexual generations that alternate with each other to complete the life cycle. Such alternation of generation in which the asexual polypoid generation appears to alternate regularly with the sexual medusoid generation but both forms are diploid, is called Metagenesis.

So the correct answer is 'Obelia'.

Explanation:

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Answer 2

Answer:

$<p style="color:red;font-family:cursive;background:yellow;font size:25px;"></p><p>The class Anthozoa includes all cnidarians that exhibit a polyp body plan only; in other words, there is no medusa stage within their life cycle.$

$<p style="color:cyan;font-family:cursive;background:black;font size:25px;"></p><p> Examples include sea anemones, sea pens, and corals, with an estimated.$

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