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What phylum is most closely related phylogenetically to first vertebrates?
The phylum Chordata is most closely related phylogenetically to the first vertebrates. Chordates share a number of characteristics with vertebrates, such as having a notochord, dorsal nerve cord, and pharyngeal slits. Cells within the notochord further develop into the vertebrae that define vertebrates.
Are mice vertebrates?
Yes, mice are vertebrates. Vertebrates are animals with a backbone or spinal column, and mice belong to the group of mammals that possess this characteristic.
What are the two major groups of animal classification?
The two major groups of animal classification are vertebrates and invertebrates. Vertebrates have a backbone or spine, while invertebrates do not. Examples of vertebrates include mammals, birds, reptiles, amphibians, and fish, while invertebrates include insects, arachnids, mollusks, and annelids.
How many of the 29 phyla include vertebrates?
There are 29 phyla in the kingdom Animalia. Only 3 percent of organisms in this kingdom are vertebrates. they are found in one phylum, called Chordata.
What are the three classification of animals?
The three classifications of animals are vertebrates, invertebrates, and mammals. Vertebrates have a backbone, while invertebrates do not. Mammals are a subgroup of vertebrates distinguished by characteristics such as hair and mammary glands.
