WebOsteichthyes ( / ˌɒstiːˈɪkθi.iːz / ), commonly referred to as the bony fish, is a diverse superclass of vertebrates, that have skeletons primarily composed of bone tissue. They can be contrasted with the … WebJawless Fishes. Jawless fishes are craniates that represent an ancient vertebrate lineage that arose over one half-billion years ago. In the past, the hagfishes and lampreys were classified together as agnathans. Today, hagfishes and lampreys are recognized as separate clades, primarily because lampreys are true vertebrates, whereas hagfishes ...
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WebThe animals in this group live in a variety of habitats ranging from coral reefs and kelp forests to rivers, streams, and the open ocean. Another is that fish are very old on the evolutionary scale. WebSep 28, 2024 · Ancient fish from the Silurian period provide evolutionary insights. Scarce evidence indicates that key evolutionary steps for jawed vertebrates occurred during or before the Silurian period, 444 ... bon anniversaire en wolof
Xword Vertebrates Answers Biology Junction [PDF]
WebJun 8, 2024 · Vertebrates include the amphibians, reptiles, mammals, and birds, as well as the jawless fishes, bony fishes, sharks, and rays. Figure \(\PageIndex{1}\): Diversity of vertebrates: animals with backbones: The subphylum Vertebrata contains all animals that possess backbones, gills, and a central nervous system in at least one phase of … WebFish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills. WebOct 25, 2010 · Fish. Fishes are members of a large, heterogeneous group of vertebrates living in a wide variety of aquatic habitats. Freshwater habitats of fishes are diverse, including hot springs, cold torrential mountain streams, deep lakes and saline waters (artwork by Karen Klitz). Groundfish are adapted to life at or near the bottom of the sea … gnomes in the garden fabric