Jul 25, 2021 · Phylum is the third most broad taxonomy level and includes seven different categories: Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Chordata, and Mollusca.

chordate, any member of the phylum Chordata, which includes the vertebrates (subphylum Vertebrata), the most highly evolved animals, as well as two other subphyla—the tunicates (subphylum Tunicata) and cephalochordates (subphylum Cephalochordata). Some classifications also include the phylum Hemichordata with the chordates. As the name implies, at some time …

Apr 28, 2017 · C is correct. Until scientist started practicing embryology to view the development of individual organisms, it was not known that even humans retained some of the basic characteristics of their phylum. While our postanal tail and gills eventually disappear, it was much easier to classify the phylum Chordata, knowing that its members must have the traits at some …

In biology, a phylum (/ ˈ f aɪ l əm /; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class.Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature for algae, fungi, and plants accepts the terms as equivalent. Depending on definitions, the animal kingdom Animalia contains …

Apr 07, 2019 · The phylum Chordata includes a wide range of organisms, as it is comprised of all vertebrates, ... Chordates generally have bilaterally symmetric bodies, though a few exceptions exist, and they share distinct characteristics that will be discussed later on. Characteristics of Chordates. Chordates have all of these characteristics, at least at ...

Echinoderms are named for the spines or bumps covering the outer surface of the bodies of many of them (Greek root word echino- meaning spiny; Latin root word -derm meaning skin).Examples of echinoderms include sea stars, sea urchins, sea cucumbers, brittle stars, and feather stars (Fig. 3.83). Although they may appear very different, echinoderms all have two major defining …

Etymology. The word "animal" comes from the Latin animalis, meaning 'having breath', 'having soul' or 'living being'. The biological definition includes all members of the kingdom Animalia. In colloquial usage, the term animal is often used to refer only to nonhuman animals. The term "metazoa" is from Ancient Greek μετα (meta, used to mean "later") and ζῷᾰ (zōia, plural of ζῷον ...

Vertebrates belong to the phylum called Phylum Chordata. Vertebrates are further broken down into five classes: amphibians, birds, fish, mammals, and reptiles. ... The classification of living things involves organizing life forms based on shared characteristics. The word taxonomy is the term used to describe the classification of living things.

Characteristics. The Atelidae family consists of monkeys that are small to moderate in size, usually 34 to 72 cm in head-body length, with the howler monkeys being the largest members of the group, and the spider monkeys being the smallest. They have long prehensile tails with a sensitive, almost hairless, tactile pad on the underside of the distal part.