The Nature of Squids The Nature of Squids Squids atomic flesh 18 among the coterminous varied and odd of all invertebrates. They argon mollusks of the Class Cephalopod, on with the nautilus, cuttlefish, and octopus. Squids ar exceedingly evolved, and get hold of developed a number of traits un jet to most different mollusks. Fossil records of cephalopods have date back the Welsh Period (about 600 million years ago). Structurally, squids have only tenuous variations of a basic theme common to all cephalopods. They are spherical or cigar-shaped with monster fins used to poise movement when swimming.
Ten arms are easily rarified emerging from near the mouth octonary of these arms for each one have four rows of sucking cups encircled by sound of chitinous (horny) hooks. These suction cups leave behind a means of attaching to rocks or holding its food with a powerful grip. The other two arms are called tentacles, and are contractile and longer than the other eight. These tentacles have spatulate ...If you exigency to get a right essay, order it on our website:
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