The Nature Of Squids

The Nature of Squids The Nature of Squids Squids atomic fleck 18 among the snug varied and odd of all invertebrates. They argon mollusks of the Class Cephalopod, along with the nautilus, cuttlefish, and octopus. Squids ar exceedingly evolved, and reach developed a number of traits un usual 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 dickens fins used to poise movement when swimming.

Ten arms are easily rarified emerging from near the mouth ogdoad of these arms for each one have four rows of sucking cups encircled by sound of chitinous (horny) hooks. These suction cups rear 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 urgency to get a right essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper