'Modern amphibians' diaporamas de présentation

Chapter 42: Amphibians

Chapter 42: Amphibians. 42-1 Origin and Evolution of Amphibians. 42-2 Characteristics of Amphibians. 42-3 Reproduction of Amphibians. 42-1 Origin and Evolution of Amphibians. I. Adaptation to Land (~ from LOBE-finned fishes, 370 m.y.a.).

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17.3 Amphibians

17.3 Amphibians. Objectives. Describe the origin of amphibians. Describe the characteristics and adaptations of amphibians. Explain the process of metamorphosis in frogs. Movement onto Land. Imagine seeing a fish crawl across the highway.

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Class Amphibia

Class Amphibia. What is an Amphibian?. Vertebrate Lives in water as a larva Lives on land as an adult. Questions . What domain? What kingdom? What phylum? What subphylum? What class?. What is an Amphibian?. Breathes with lungs as an adult What do they use as larva?

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How did amphibians, such as frogs, trade their tails for legs?

How did amphibians, such as frogs, trade their tails for legs?. Unit Questions. 1. How did the tetrapod leg evolve? 2. Why did early animals move from water to land? How did amphibians transition from life in water to life on land? What are the three major groups of modern amphibians.

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KEY CONCEPT Amphibians evolved from lobe-finned fish.

KEY CONCEPT Amphibians evolved from lobe-finned fish. Amphibians were the first animals with four limbs. Tetrapods are vertebrates that have four limbs. The fossilized remains of Tiktaalik roseae indicate it was a transitional species between fish and tetrapods.

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