26th May 2023
write in your science notes.
Animal Classification
The animal Kingdom is divided into two groups. which are; vertebrates and invertebrates
vertebrates; are animals that have a backbone. They have a firm body because of the muscles that connect to their skeleton.
Invertebrates : are animals that do not have a backbone. They have soft inner bodies which are held in shape by a flexible covering of outer cell or by a hard covering called an exoskeleton.
There are five groups of vertebrates. Namely;
- Fish
- Mammals
- Bird
- Reptile
- Amphibians
characteristics or features of vertebrates
| vertebrates | characteristics or features | popular example |
| Birds | 1. have feathered wings 2. have beaks 3. lay eggs with hard shell 4.warm blooded 5. have lungs for breathing | eagle, sparrow, ostrich, penguin |
| Fish | 1. Body covered in scales 2. Have gills for breathing 3. Young ones develop inside an egg 4. Cold blooded 5. Live in water | Goldfish, shark, tunafish, stingray |
| Reptiles | 1. Body covered with scaly and dry skin 2. Lay eggs with soft shell on land 3. Cold blooded 4. Breath through lungs | Turtle, crocodile, lizard, snake |
| Mammals | 1.Body covered in with fur and hair 2. Young develop inside a womb suckle their young 3.Warm blooded 4. Breath through lungs | Tiger, human, whale, dog, goat, and camel |
| Amphibians | 1.Skin is moist and slimy 2. Lay eggs in water 3. Adult breath through lungs or the skin | Salamander, toad, frog |
