Arthropoda includes insects, spiders, lobsters, and crabs. Aves the vertebrate class Aves includes all of the birds. Like reptiles, they lay amniote eggs . If there are two functionally similar body parts, they are usually found roughly equidistant from the center line, parallel to each other on bilaterally symmetrical animals. A genus is a higher level category that includes one or more species under it.
Binomial nomenclature is another term for binomen.
These are the sharks and rays. Chordata the phylum of animals that is characterized by elongated bilaterally symmetrical bodies. In some phase of their life cycle, they have a notochord and gill slits or pouches. Chordates also often have a head, a tail, and a digestive system with an opening at both ends of the body . The Chordata include fish, amphibians, reptiles, birds, mammals , and 2 invertebrate subphyla.