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All living things require the correct conditions to grow. Seed germination is dependent on the correct temperature whilst plants require nutrients. Animals need the correct balance of foods.

Bacteria and plants can reproduce asexually to produce genetically identical individuals. Sexual reproduction, involving the fusion of gametes introduces variety into animal and plant species.

Our genes are inherited from our parents, and the different combinations of these genes make us unique. Genetic inheritance controls the characteristics of all living things.