AY Honors/Amphibians/Answer Key
1. What are the characteristics of amphibians?
Living half of their life in water and land. they are vertabrates.
2. Name the two main orders of amphibia and tell how to distinguish between them.
Frogs and Toads Nuets and Salomanders
Anura no tails Cautta
Gymnophiona Muddpuppies
caecillians no limbs
3. Distinguish between toads and frogs.
Toads have wortsand fatter,have short legs, dry,and hops. Frogs are stream lined leg,leaps,lay clumps of eggs.
4. How do amphibians protect themselves?
Toads have milky white paratids that are poisinious when a predator trys to eat it. Frogs and salamandors blends in with there surroundings.
5. Make a list of amphibians that should be found in your locality. Identify five and tell where you found them. OR Collect pictures or sketch five different amphibians which you can identify and tell where they are found.
6. Describe the life history of some amphibian.
7. Explain the economic value of amphibians.
Amphibians are insect eaters, so they are very valuable for controlling mosquito populations. They are also the preferred dinner for several mammal, bird, fish, and reptile species.
Amphibians are valuable for medical research. They are raised and sold to research institutions.
The larvae of newts and salamanders are sold as fish bait.
Amphibians are closely monitored by ecologists, because they are among the first animals affected by environmental problems such as pollution and the destruction of the ozonelayer.
