The story of twins separated at birth is used to explain clones and cloning.
What did Darwin mean by the terms 'natural selection' and 'survival of the fittest'?
Cellular organisation is described and the seven life processes are recapped.
The differences and similarities of animal and plant cells are described.
A look at the cells of different organisms and a comparison of structures.
An explanation of photosynthesis - where the process occurs and its importance to plants.
An explanation of the equation for photosynthesis and its relationship to respiration.
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