Edexcel OLevel Biology revision notes

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Lesson

Lesson-2.7.9- describe the composition of the blood: red blood cells, white blood cells, platelets and plasma.

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Lesson-2.7.8- practical: investigate the role of environmental factors in determining the rate of transpiration from a leafy shoot.Previous Lesson-2.7.10- understand the role of plasma in the transport of carbon dioxide, digested food, urea, hormones and heat energy.Next