PPT-Amphibians!!!

Taxonomy of Amphibians Kingdom Animalia Phylum Chordata Subphylum Vertebrata Class Amphibia Order Urodela salamanders amp newts Order Anura frogs amp toads. NOTES. EXTERNAL STRUCTURE AND MOVEMENT. Amphibian skin does not have . scales. , feathers, or . hair. .. It does have . secretions. that help with protection. . These glands also keep skin . moist. to prevent drying. . ti0HDtRY8u4. . Amphibia. . Courtney Johnson, Jessica . MacIsaac. , . Kirsty. Upshaw and Julia Davis. Definition. Amphibian: . Means “double life”, to live in water and on land. Introduction. Subclasses. Mrs. . Krajewski. Characteristics of animals. Characteristics:. 1. made of cells. 2. They reproduce. 3. They move. 4. They eat food. 5. They grow and change. Vertebrates vs.. . Invertebrates . Vertebrates. Chordata. An Introduction to Vertebrate Animals . Introduction. Chordates (vertebrates) are the group of animals . most familiar to us. Ex: . mammals, birds, amphibians, reptiles, fish. Name comes from:. Test 2: Amphibians and Reptiles:. Objective 1: Describe the characteristics of Modern Amphibians. Objective 2: Describe characteristics of the following orders: (. Apoda. , . Urodela. , . Anura. ). Give examples of each.. Amphibians are eukaryotic, heterotrophic vertebrates. They have thin, smooth, moist skin. Some of them have fish-like scales and none of them have claws.. They are ectothermic (coldblooded).. They have external gills and lungs.. Adaptations to Meet Challenges of Life on Land. Challenges of Life on Land vs. Water. Adaptation to Meet Challenge . Air much less buoyant than water so must move against gravity. Limbs develop;. skeletal and muscle systems become stronger. Sinfield-Albets. Toler. Amphibians. The First Terrestrial Vertebrates. Amphibians are present on all continents except for Antarctica. . 3,000 modern day species.. This is a remnant of a once diverse group.. 9-25-17. 1. How does a vertebrate differ from an invertebrate?. A. A vertebrate eats only vegetables. B. All vertebrates are warm blooded. C. All vertebrates can fly. D. All vertebrates have a backbone. Amphibians “Double Life” Adaptations to Meet Challenges of Life on Land Challenges of Life on Land vs. Water Adaptation to Meet Challenge Air much less buoyant than water so must move against gravity Amphibians “Double Life” Adaptations to Meet Challenges of Life on Land Challenges of Life on Land vs. Water Adaptation to Meet Challenge Air much less buoyant than water so must move against gravity Amphibians and Reptiles Class Amphibia Amphibia =Double Life Frogs, toads, salamanders, and caecilians ~6000 species Skin with mucoid secretions, lack epidermal scales, feathers or hair Larvae are usually aquatic and Characteristics of Class Amphibia. Most amphibians. are . tetrapods. , meaning they have . four limbs. , but . some are limbless. .. Amphibians have . smooth, moist skin. .. Amphibians . respire by lungs, skin, and gills;. Chapter 34. “Never grow . a wishbone . where your backbone ought to be” . -Clementine . Paddleford. Origin of . Tetrapods. First . tetrapods. diverged 365 million years ago . (________). ________________________and shallow inland lakes with muddy bottoms likely selected for early .