cnidaria
IPA: sˈiˈɛnɪdˈɑriʌ
noun
- cnidarian
Advertisement
Examples of "cnidaria" in Sentences
- Some sponges and cnidaria have this kind of body form.
- Cnidaria have no brains or even central nervous systems.
- I looked at rabbit, cnidaria, deer and perhaps a few others.
- This is characteristic of the phylum now called the Cnidaria.
- This simplest of all the cnidaria has, it is true, a crown of tentacles round its mouth.
- In most of the cnidaria and many of the annelids (worm-like animals) they remain unchanged throughout life.
- There are four stems belonging to the coelenteria: the gastraeads ( "primitive-gut animals"), sponges, cnidaria, and platodes.
- This we find in the lower cnidaria and worms, as well as in the more highly-developed molluscs, echinoderms, articulates, and vertebrates.
- (Sagitta), and many of the echinoderms and cnidaria, such as the common star-fish and sea-urchin, many of the medusae and corals, and the simpler sponges (Olynthus).
- A short survey to a depth of 20 m revealed 168 species of finfish, 60 species of cnidaria, including corals, 8 molluscs, 14 sponges, 11 echinoderms, 15 arthropods and 8 annelid worms.
- Did the cnidaria have Hox clusters, suggesting that the clustered Hox genes were a very early event in evolution, or do they lack them and therefore evolved an independent set of mechanisms for specifying positional information along the body axis?
- It is certainly a fact of the greatest interest and instructiveness that animals of the most different stems -- vertebrates and tunicates, molluscs and articulates, echinoderms and annelids, cnidaria and sponges -- proceed from one and the same embryonic form.
- Without going into the difficult question of the origin of this stem, we must emphasise the fact that the vertebrate stem has no direct affinity whatever to five of the other ten stems; these five isolated phyla are the sponges, cnidaria, molluscs, articulates, and echinoderms.
Advertisement
Advertisement