Antomy of Fish and Amphibians

2062 Words5 Pages

Anatomy
A way to identify a fish is by their body structure, they have fins and a backbone. The anatomical adaptation of fins helps them survive and makes them and marine animal unique in that they use them to maintain their position, move, steer, and stop. Most fish have scales and breathe though gills. Most fish also have a mucus layer that helps them prevent infections. With in what we consider “fish,” there are many that don’t very much look like they are earth creatures. The strangest fish species are found in deep ocean waters, such as the Pacific Barreleye, which is distinctive in that, its head is a fluid-filled transparent shield. Among other strange looking fish there are the Sheepshead and the Parrotfish
Amphibian’s body structure is different depending on what species you are looking at. The general body features of a frog, for example, are very similar to the anatomy of humans. Both humans and the frog have the same kinds of organs and systems of organs. The frog's anatomy, however, are much simpler. As in other higher vertebrates, the frog body is divided into a head, a short neck, and a trunk. The flat head contains the brain, mouth, eyes, ears, and nose. A short and almost rigid neck allows only limited head movement. The frog is covered by a soft, thin, moist skin composed of two layers, an outer epidermis and an inner dermis. This is a special anatomical adaptation that all amphibians have which has helped them survive. As for unique species of amphibians, some worth noting are the Giant Chinese Salamander, the Purple Frog, and the Olm, which is a blind salamander with transparent skin that lives underground, hunts for its prey by smell and electrosensitivity and can survive without food for 10 years.
W...

... middle of paper ...

...e found in a various types of habitats, bats in the skies, whales and dolphins in the sea, and giants like the elephant in land. Mammals, being the dominant class of the current era since the Cenozoic era, affect the environment the most, mainly due to humans being the dominant species on the planet. Human’s niche in the ecosystem can be seen in all aspects of the current state of the planet. The acquisition and consumption of natural resources, pollution, and deforestation are some of the roles that mammals, humans, have on the biome in which they live in.
Behavior
Fish are oviparous, there are some ovoviviparous.
Amphibians are oviparous, there are some ovoviviparous.
Reptiles are oviparous, there are very few ovoviviparous.
All birds are oviparous.
Mammals are viviparous, with the exception of four species of Echidna, and the Platypus, which are oviparous.

More about Antomy of Fish and Amphibians

Open Document