This document introduces the classification of living things into two kingdoms: plants and animals. It states that animals are further divided into two groups - vertebrates, which have backbones, and invertebrates, which do not have backbones. The document provides these classifications as an introduction to studying the animal kingdom.

1. INTRODUCTION: CLASSIFYING
LIVING THINGS

2. • All life can be divided into two kingdoms.
• Do you know which ones? Here you have
some clues:

3. I guess you were right…
All life can be divided into two kindoms:
3. ANIMALS
2. PLANTS

4. • In this unit we are going to study the
animal kingdom.
• First of all, you should know that animals
are divided into two groups, according to
the backbone. Do you know these two
groups?

5. • Animals are divided into:
• VERTEBRATES
• INVERTEBRATES

6. VERTEBRATES
• Vertebrates are animals with BACKBONE.

7. INVERTEBRATES
• Invertebrates are animals with NO
BACKBONE.

8. YOUR GLOSSARY
Do you remember these words?
• Life:
• Living thing:
• Kingdom:
• Backbone: