Chordata examples. Chordate 2022-10-20

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Chordates are a diverse group of animals that include vertebrates such as mammals, birds, reptiles, and fish, as well as invertebrates such as lancelets and tunicates. These animals are characterized by several key features, including a notochord, a dorsal nerve cord, pharyngeal slits, and a tail.

One example of a chordate is the human, which is a vertebrate in the class Mammalia. Humans have a notochord during their development, which eventually becomes the spine. They also have a dorsal nerve cord, which becomes the spinal cord, and pharyngeal slits, which develop into gills in fish and into the tonsils and thymus gland in humans. Humans do not have a tail as adults, but they do have a vestigial tailbone.

Another example of a chordate is the dog, which is also a vertebrate in the class Mammalia. Dogs, like humans, have a notochord that develops into the spine, a dorsal nerve cord that becomes the spinal cord, and pharyngeal slits that develop into the tonsils and thymus gland. Dogs do have a tail, which is used for balance and communication.

A third example of a chordate is the bird, which is a vertebrate in the class Aves. Birds have a notochord that develops into the spine, a dorsal nerve cord that becomes the spinal cord, and pharyngeal slits that develop into the larynx. Birds do not have a tail as adults, but some species, such as the peacock, have elaborate tail feathers used for courtship displays.

Invertebrate chordates, such as lancelets and tunicates, also have many of the characteristics of chordates. Lancelets, also known as amphioxus, are small, translucent animals that live in shallow marine environments. They have a notochord, a dorsal nerve cord, and pharyngeal slits, but they do not have a tail. Tunicates, also known as sea squirts, are sessile animals that are found in marine environments. They have a notochord and a dorsal nerve cord, but they do not have pharyngeal slits or a tail.

In conclusion, chordates are a diverse group of animals that includes vertebrates such as mammals, birds, reptiles, and fish, as well as invertebrates such as lancelets and tunicates. These animals are characterized by several key features, including a notochord, a dorsal nerve cord, pharyngeal slits, and a tail. Examples of chordates include humans, dogs, birds, lancelets, and tunicates.

Chordata Characteristics & Groups

chordata examples

Characteristics ofChordates Animals belonging to this phylum share four key features: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. The vertebrates include: birds, fishes, mammals, amphibians and reptiles, while the invertebrates include: Urochordata tunicates and Cephalochordata lancelets. Gill-slits not covered with operculum. It is a jawless fish that can be found living on filter feeds and grown into an adult that possesses an oral disk covered with sharp teeth used to latch on to fishes to obtain nourishment. Thus, it may be seen at the top of the notochord in chordates. They are viviparous, sexes are separate, and fertilization is internal and development is direct. Presence of dorsal-ventral column formed of vertebrae.

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Phylum Chordata

chordata examples

The epithelium secretes a gelatinous covering of the body. Chordates obtain nutrition from ingestion of food into the mouth, digestion, and assimilation of nutrients from food particles in the gut, and elimination of wastes from the anus. Post-Anal Tail The post-anal tail is present in all chordates at some point in their life cycle. Answer: In vertebrates, the notochord vanishes and produces the spine vertebral column. In primitive chordates, the pharyngeal slits are used to filter food particles. They have epidermal nervous system. Their skin is dry, the tough glands and it is covered by epidermal scales.


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Classification of Phylum Chordata (With Characters)

chordata examples

It develops into a vertebral column in all vertebrates and disappears completely in tunicates. Notochord supplemented or replaced by a vertebral column or backbone comprising of overlapping vertebrae. The skull bears a single occipital condyle. They have paired appendages and cartilaginous skeleton. Jawed vertebrates having true jaws and paired limbs.

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Characteristics of Chordates

chordata examples

Usually, a tunicate will prefer to reproduce sexually with a separate male or female if there is one available. The phylum Chordata have the characteristic notochord, dorsal nerve cord and pharyngeal slits. Within the amniotes, modifications of keratinous epidermal structures have given rise to scales, claws, hair, and feathers. In chordates, there is only one dorsal nerve cord. These innovations may be associated with the whole genome duplications that resulted in a quadruplication of the basic chordate genome, including the Hox gene loci that regulate the placement of structures along the three axes of the body. One unique feature is that the notochord and nerve cord, which are found along the entire length of the body, persist throughout life even in the adult phase.

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Chordata General Characteristics, Classification and Examples

chordata examples

Examples: Scoliodon, Sphyrna, Torpedo, etc. The ventral heart is tubular. The post-anal tail is present at some point in the life cycle of chordates, but can dissipate or fall off of most species later in life. At this stage, the adult stage, they lack the four standard features that define chordates, but in their embryonic stages, all the features are present. Some of the most frequent reptiles include turtles, chameleons, crocodiles, and snakes. In protochordate, the notochord remains during the rest of their life. Thus, it has been concluded that the former clade represents the Ambulacraria and the latter one shows the Chordata phylum.

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Chordata: Definition, Characteristic, and Examples

chordata examples

Class Leptocardii: Body fish-like, segmented with numerous gill-slits. They are both fresh and marine water habitat. All chordates exhibit these characteristics at some point in their life, usually, these traits are exhibited in their embryonic state. The urochordates, vertebrates, and cephalochordates make up another. Examples: Gallus, Passer, Corvus, Columba, Psittacula, Pavo, etc.


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Chordata

chordata examples

Class Aves The members of this class are commonly known as birds and exhibit the following characters: i. This adaptation is not always present in chordates. The lamprey, for example, is a vertebrate belonging to the Vertebrata subphylum. As a result of their progressions and evolutions, they eventually made their way to freshwater ponds and ultimately to land. Question 3: Which chordate group has the most species? Examples- Rana frog , Bufo toad , Ambystoma salamander. Another one is formed by the urochordates, vertebrates, and cephalochordates. Digestive processes differ based on the organism but range from simple filter-feeding to complex digestive processes with multiple supplementary organs like a multichambered stomach, liver, and pancreas.

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Chordata Characteristics & Digestive System

chordata examples

Examples — Rana, Bufa, etc. The larva possesses gills and the adult bears lungs. Body small and compact. Phylum Chordata Examples The examples of the phylum Chordata are given below: Phylum Chordata: Examples are lamprey, lancelets, dog, human etc. The body is generally spindle-shaped.

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Chordate

chordata examples

Fish make up a large and highly diverse group of species. In vertebrates it is only found in the embryo, however, in adults, it is replaced by a vertebral column backbone. The skull has two occipital condyles. Birds have separate sexes, and fertilization of the females eggs happens internally after birds have mated. Gill-slits covered with operculum.

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What animals are in the phylum chordata?

chordata examples

Urochordata, which means "tail chordates," also called tunicates, is a subphylum of Chordates. Vertebrata: This subphylum is also known as Craniata as the comprising organisms have a cranium case that protects their head and is known as a skull. The phylum Chordata has three subphyla: Cephalochordate, Vertebrata, and Urochordata. Larval lampreys use a mucus-secreting organ for trapping food particles in their pharynx, and have a post-anal tail. Groups of Chordata Chordata is a phylum which is the third category on the phylogenic tree of life.

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