Life on Earth Began about 2.5 billion years ago.
Plants:
From the tiniest flower to the largest tree, there are an immense variety of plants. Scientists believe there are about 400,000 species, but it may be many more.
Flowers:
Many plants produce flowers. These are pollinated by animals, wind, and by the plant itself. Pollination results in the seeds needed to grow new plants.
Fungi:
They may look like plants, but fungi are neither animals nor plants, but they are living things.
Animals:
The animal kingdom consists of vertebrates ( animals with a backbone) and invertebrates (the creepy - crawlies)
Animals with Backbones:
Vertebrates, or animals with backbones, are dividede into five categories. Mammals breathe air. Most live on land but some are aquatic.
Birds have feathered wings. Most can fly , but not all
Reptiles are cold blooded and rely on their environment for body heat.
Amphibians are able to live on land or in water. They are cold-blooded.
Fish live in fresh water or sea water - or some can move between the two.
