CLASSIFICATION OF LIVING THINGS.

* Living things and non-living things are all around us. Animals and plants are living things. Animals belong to the Animal Kingdom. Plants belong to the Plant Kingdom.

 VERTEBRATES.

* Animals are classified into vertebrates and invertebrates. Vertebrates have a backbone inside their bodies. Invertebrates don't have a backbone inside their bodies. Humans are vertebrates.

 INVERTEBRATES.

Invertebrates don't have a backbone inside their bodies. Molluscs, arthropods and worms are invertebrates. Octopuses and snails are molluscs. Spiders and ladybirds are arthropods.

Arthropods have a segmented body. They have three body parts: head, thorax and abdomen. Some arthropods have wings and some don't. Insects and spiders are arthropods. Insects have six legs. Spiiders

Some mammals are domestic. They live on farms or with people as pets.

Some mammals are wild. They live in their natural habitat. We should respect them and not touch them.