miércoles, 8 de febrero de 2017

Reviewing Unit 3 The Animal Kingdom

Unit 3 The Animal Kingdom
1.- Living things are born, living things grow, living things reproduce and living things die.


2.- Animals with a backbone are called VERTEBRATES.
Vertebrates can be divided into:
  • Mammals: have fur, are born from the mother's womb, drink milk, they are viviparous, they can run, jump, crawl, swim, etc.
  • Birds: have feathers, wings, beak, they fly, they are oviparous
  • Amphibians: live on land and in the water, they are oviparous, they lay soft eggs in the water, breath with gills first and then with lungs, their skin is moist (moist skin).
  • Reptiles: live on land and in the water, lay hard eggs on land, they are oviparous, they breathe with lungs.
  • Fish: have scales, fins and tail. They are oviparous. They breathe with gills.
3.- Animals with no backbone are called INVERTEBRATES
Invertebrates can be divided into:
  • Molluscs: soft moist body; they can have tentacles or a shell.
  • Arthropods: they have segmented body, many have antennae, they have an exoskeleton.




4.- Animals can fly, can run, can jump, can swim, and animals can crawl.
5.- Animals that only eat meat are called CARNIVORES. 
6.- Animals that only eat plants are called HERBIVORES. 
7.- Animals that eat meat and plants are called OMNIVORES.


8.- Animals that are born from the mother's womb are called VIVIPAROUS. 
9.- Animals that are born from and egg are called OVIPAROUS.