Vertebrates+1

** Aquatic Vertebrates ** Most Salamanders are carnivores, which means they eat small insects and their larvae, sometimes small animals, and worms and snails. Most salamanders are nocturnal and avoid sunlight. They are amphibians and are usually found in damp areas of the northern temperate zone in places such as ponds, swamps, streams, lakes, rivers, wet mountain forests, and grasslands. Salamanders live in all continents except antarctica. Some salamanders, like the Red-Spotted Newt, have poisonous, brightly colored skin for protection. Most salamanders are under six inches long and have skin that is very sensitive to pollution. Frogs **can be found almost everywhere except Antarctica. Most can be found in tropical regions and warmer countries in water or near ponds and streams. Some can live on land when older. Frogs are predators. Their diets consist mainly of insects, small animals like earthworms, minnows, and spiders.** Fish are also considered aquatic vertebrates. they can be predators such as pike,pickerel,gars,and bullheads that attack other living organisms. Some fish feed on algae such as grazers,stainers, or suckers. Detritivores are organisms that feed on decomposing organic matter by shredding sediments or filtering their food directly. Catfish are an example of a detritivore because it is considered a bottom feeder.
 * Amphibians and fish

How Human Activities impacted Vertebrates The difference between Vertebrates and Invertebrates is that vertebrates have a backbone and Invertebrates don't. Detritivores relate to decomposers because decomposers start the process of the decomposition that leads to detritivores eating the decomposing organic matter.
 * pollution
 * acid rain
 * over fishing