Chordate

Coelacanths can grow up to 2 m in length. Their bodies are covered in blue scales, which turn brown after death, with a white speckling that is unique to each individual. Their seven fins have fleshy lobes and they move their two paired sets of fins (pectoral and pelvic) in a diagonally synchronous manner like a four-limbed terrestrial animal. Unlike all other vertebrates, coelacanths possess an intracranial joint and an associated basicranial muscle. The purpose of this structure is disputed,…

This is a book report on the animal The Axolotl, which comes from Aztecs. Axolotl means water, while xolotl means monster. So this animal is considered a, “Water Monster.” It is a non-native fish that also goes by the name, “Mexican Walking Fish.” It’s an amphibian, like a frog, and is in a paused state of metamorphosis. Their classification is in the phylum, Chordata. The Axolotl was first founded in 1789, in Mexico City. The labs that they were founded in and tested on were in Paris. They are…

The african elephant lies in the phylum chordata because it has tissues, and a coelom. Along with having these two attributes, it is bilaterally symmetrical and also possesses a dorsal,tubular nerve cord and a postanal tail. It lies in the class Mammalia because it possess hair which is made of keratin, the hair provides insulation. It is endothermic (the majority of the heat energy is used to maintain their high body temperature). It has a 4 chamber heart. They also have mammary glands that are…

1.One anatomical feature in the vertebra is called the parapophysis which is part of transversal processes in the vertebrae. Transversal processes is a protuberance where that feature projects outward from the side of the vertebrae. Because the parapophysis is located on the dorsal side of the neural spine, one of its functions would be to help form a wide ribcage and provide sufficient space for a big gut. Type of thyreophoran dinosaur: Stegosaurus Case/ specimen number: uncatalogued 2. A…

Starfish are classified under the domain Eukarya. Their multicellular presence and existing nuclei exclude them from prokaryotic domains. Furthermore, they are classified in the Animalia kingdom because they are not prokaryotes or protists. Next, Sea Stars fall under echinoderms, which are invertebrates characterized by their hard, spiny skin. The echinoderm phylum consists of mostly sea creatures (Pawson & Miller, 2016). Organisms placed in the Asteroidea class are identified by their arms that…

Cervus canadensis Domain - Eukaryote Kingdom- Animalia Phylum - Chordata Class - Mammalia Order - Artiodactyla (“even” - “number of toes”) Family - Cervidae Genus - Cervus Species- canadensis Cervus canadensis (Elk) is one of the largest species within the Cervidae family (deer), and is also considered one of the largest land mammals in North America and Eastern Asia based upon mass and size. The word “Elk” comes from two languages: Old…

The phylum chordate is one of the first phylum’s everybody learns in school. This is because it includes the human species and a lot of other animals that we know, in which they all have a spine aka vertebrate. All animals in the chordate have similar characteristics, sometime through their life cycle, this can include when they are an embryo. All of this phylum have pharayneal slits which are a series of opening that connect the outside of their neck with the inside of their throat, these are…

kingdom. Chordates are cosmopolitan and are well represented in marine, freshwater as well as terrestrial habitats from the equator to the high northern and southern latitudes. The oldest fossil chordates are of Cambrian age. All chordates are deuterosomes, and their organs are suspended in the mesentery tissue between the endoderm tissue of the digestive tract (alimentary canal) and the ectoderm tissue on the surface. There are about 45,000 species of chordates. The smallest chordates (e.g.…

Question 1 1.1) Hemichordates share some characters with echinoderms and chordates. Pharyngeal slits they share with chordates. Hemichordates are the sister taxon to echinoderms as described by Ambulacraria hypothesis, then gill slits are an ancestral feature for deuterostomes. These gill slits are supposedly lost in in lineage but some researchers have found evidence for gill slits in extinct carpoid echinoderms. The Ambulacraria hypothesis unites echinoderms and hemichordates on the basis of a…

Kingdom: Animalia Phylum: Porifera Classification information for Poriferans: Poriferans, better known as sponges, consist of 5000 known species, all located primarily in marine and fresh waters (Myers, 2001a). They are multicellular, heterotrophic, invertebrates with an irregular shape and no distinct pattern of symmetry (Myers, 2001a). Overall, they are the simplest of animals; thus, lacking any true tissue and/or germ layers (Myers, 2001a). Furthermore, they are known to be highly sessile,…