Question

mention the unique features of cnidaria .​

Answer 1

Answer:

Body is radially symmetrical and bears tentacles. Body is diploblastic i.e. having 2 germ layers. They have a gastrovascular body cavity. some of them are sedentary. They are mostly marine animals

Answer 2

Answer:

$\huge\underline\pink{\tt Hey\:Mate}$

1. Cnidaria are aquatic, mostly marine, organisms

2. They all have tentacles with stinging cells called nematocysts that they use to capture food

3. Cnidarians only have two body layers, the ectoderm and endoderm, separated by a jelly-like layer called the mesoglea

4. Most Cnidarians have complicated reproductive cycles that include an asexual stage and a sexual stage.

5. Some Cnidarians are completely mobile while others are completely sessile, but most have both mobile medusa and sessile polyp stages in their life cycles.

6. The phylum Cnidaria contains about 10,000 described species divided into four classes: Anthozoa, Scyphozoa, Cubozoa, and Hydrozoa.

7.The anthozoans, the sea anemones and corals, are all sessile species, whereas the scyphozoans (jellyfish) and cubozoans (box jellies) are swimming forms.

8. The hydrozoans contain sessile forms and swimming colonial forms like the Portuguese Man Of War.

Hope this will help uh!!

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