This document discusses the characteristics of reptiles, amphibians, and fish. It notes that most reptiles lay eggs on land and have scales, while amphibians lay eggs in water and undergo metamorphosis. It also explains that fish breathe with gills and many are oviparous, though some keep their eggs in their mouths until hatching and sharks give live birth.

1. Reptiles!

2. Characteristics of Reptiles
• Reproduction
– Most reptiles are oviparous
– They lay their eggs on land
– Baby reptiles look like adult reptiles when they
hatch

3. Characteristics of Reptiles
• Nutrition
– Most reptiles are carnivores
– Some are omnivores
– They eat plants, insects
and small animals

4. Characteristics of Reptiles
• Respiration
– They breathe with their lungs

5. Physical Characteristics
• Most have four limbs…
– But some have no limbs
• They have scales that cover and protect
their body

6. Amphibians

7. Amphibians
• Reproduction
– Amphibians are oviparous. They lay their
eggs in water
– Baby amphibians live and grow in the water

8. Reproduction continued
• Baby amphibians do not look like adult
ones
• Baby amphibians change through
metamorphosis and grow into adults

9. Amphibians
• Nutrition
– Most amphibians are carnivores
– They eat small vertebrates and
invertebrates, such as mice and worms

10. Amphibians
• Respiration
– Baby amphibians breathe with their gills
– Adults breathe with their lungs and through
their skin

11. Amphibians
• Physical Characteristics
– Most amphibians have four limbs.
– They all have moist skin.

12. Examples of amphibians
• Newt
• Salamander
 FrogFrog
 ToadToad

13. Fish

14. Fish
• Reproduction
– Most fish are oviparous
– Some fish keep their eggs in their mouths
until they hatch

15. (Reproduction continued..)
• Sharks are viviparous and give birth to
live babies

16. Fish
• Nutrition
– Fish can be carnivores, omnivores or
herbivores

17. Fish
• Respiration
– Fish breathe with their gills

18. Fish
• Physical Characteristics
– Fish have fins and a tail which help them move
– Their skin is covered in scales which protect
their body

19. Different Types of Fish
• Ray
• Eel
• Seahorse