They reproduce sexually and asexually. They can each produce billions of new completed cells called spores. They are nature s recyclers. The Germ Theory of Disease Germs are the way disease is spread. The theory was developed by Louis Pasteur in the late 19th century.
Adults have six legs.
They can not produce their own body heat. Amphibians and reptiles hibernate part of the year. Fish and some amphibians are also called Chordates which are animals that have a nerve cord and gill slits at some time in its development. They produce their own body heat. It helps them survive in different environments and stay active throughout the year.