Fish, Amphibians, Reptiles, Birds, & Mammals

1. Vertebrates Fish, Amphibians, Reptiles, Birds, & Mammals By: Mrs. Meredith Sanders This Powerpoint is hosted on www.worldofteaching.com Please visit for 100’s more free powerpoints

2. Fish • Chambers in their heart: 2 • Structures for movement: Fins • Reproduction: Lay eggs in the water • Organ that keeps them afloat: Swim bladder • Body temperature: Cold-blooded • Breathe: Through gills

3. Amphibians • Spend part of their lives in water and part on land • Do not have scales or hair • Some have tails throughout life and some lose their tail (Salamanders have tail throughout life; frogs lose their tails when they get to be adults) • Caecilians have no limbs • Frogs have smooth, moist skin; Toads have rough, dry skin. • Newts have tails throughout life. • Amphibians use color as camouflage and also to warn others of their danger. • Amphibians burrow in the mud during winter and absorb oxygen through their skin.

4. Reptiles • Covering:Dry protective scales or plates • 4 limbs with clawed toes • Turtles that live in water have flippers instead of clawed toes • Largest reptiles:crocodiles and alligators • Eggs are leathery

5. Birds • Body Temperature: warm-blooded • Down feathers to keep warm • Contour feathers to fly • Getting oxygen: though lungs and air sacs • Muscles used to fly: Chest muscles • Three ways that flying is useful: escape predators, find food, and migrate • Adaptations for flight: tiny holes in bones to make them lighter, streamlined shape, lightweight beak, & no teeth

6. Mammals • Chambers in heart: 4 • Have hair • Mammary glands to give milk to young • Have live birth • Monotremes: lay eggs • Marsupials:pouched mammals that give live birth and babies crawl into pouches until matured • Placentals: give live birth; baby attached with umbilical cord