WebFeb 25, 2024 · lamprey, any of about 43 species of primitive fishlike jawless vertebrates placed with hagfishes in the class Agnatha. Lampreys belong to the family Petromyzonidae. They live in coastal and fresh waters and are found in temperate regions around the world, except Africa. The eel-like, scaleless animals range from about 15 to 100 centimetres (6 … WebSuper Class: Agnatha. Agnatha are jawless fish. Lampreys and hagfish are in this class. Members of the agnatha class are probably the earliest vertebrates. Scientists have found fossils of agnathan species from the …
Structure and Function - Fish
WebAug 1, 2013 · A journal letter by Rexroad in 2003 discussed the use of the term 'fish mouth' to describe the shape of the intervertebral discs while emphasising that it is indeed the vertebrae themselves that ... WebOct 1, 2003 · The term fish vertebra is applied to a vertebral body that has an abnormal shape characterized by biconcavity due to depression of its superior and inferior borders. easy college scholarships 2023
Fish Anatomy Diagram & Pictures Of Fish Head, …
Web"Fish-mouth" vertebrae in sickle cell anemia Abdom Radiol (NY). 2024 Sep;42 (9):2389-2390. doi: 10.1007/s00261-017-1147-y. Authors Eduardo Kaiser Ururahy Nunes … WebFish - Structure and Function. Fish are vertebrate animals, that is, they all have a vertebral column or ‘spine’. There are two main groups of fish, bony fish ( Teleosts) and cartilaginous fish ( Elasmobranchs ). As the common names imply, the skeletons of teleosts are made of bone while the elasmobranchs have cartilaginous skeletons. Fish are vertebrates. All vertebrates are built along the basic chordate body plan: a stiff rod running through the length of the animal (vertebral column or notochord), with a hollow tube of nervous tissue (the spinal cord) above it and the gastrointestinal tract below. In all vertebrates, the mouth is found at, or right below, the anterior end of the animal, while the anus opens to the exterior before the end of the body. The remaining part of the body beyond the anus forms a tail with vertebrae … easy college meals on a budget