Variation

1. Grouping living things

• Plants and animals can be divided into groups by looking at the similarities and differences between them.
• Plants are divided into two groups, flowering plants and non-flowering plants.
• Animals are divided into two main groups. Animals that have a backbone are called vertebrates. Animals that don't have a backbone are called invertebrates.
• Vertebrates and invertebrates are divided into smaller groups. Vertebrates, for example, are divided into mammals, birds, amphibians, fish and reptiles.