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Chapter 17: Amphibians

Chapter 17: Amphibians. Chapter 17: Amphibians. Objectives: Define the Terms to Know from the textbook. Compare the 3 different orders of amphibians. Discuss the characteristics of a newt and a salamander. Discuss the difference between a frog & a toad. Define the Terms to Know.

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Chapter 17: Amphibians

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  1. Chapter 17: Amphibians

  2. Chapter 17: Amphibians • Objectives: • Define the Terms to Know from the textbook. • Compare the 3 different orders of amphibians. • Discuss the characteristics of a newt and a salamander. • Discuss the difference between a frog & a toad.

  3. Define the Terms to Know • Define the terms to know from the textbook: • Amphibians * Olm • Amphiumas * Osmosis • Cloaca * Sirens • Metamorphosis * Spermatophore • Newt

  4. Frogs & Toads • Frogs: slender bodies, with long, powerful hind legs, short front legs, and webbed feet. They develop from tadpoles, & most species when fully grown can live in water or on land. Their skin is smooth and they are excellent jumpers & swimmers.

  5. Frogs & Toads (cont.) • Toads: have short, thick bodies & short legs. True toads have skin glands that produce a poison, which can be very irritating to the mucous membranes of predatory animals. Most live on land in & around moist areas.

  6. 3 Orders of Amphibians • Gymnophiona: worm-like amphibians • Caudata: newts and salamanders • Salientia: frogs & toads

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