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The role of root hair cells is to absorb water and mineral ions. Therefore they have a large surface area to increase the rate of water absorption. Root hair cells also have a <...

describe and visualise heart and CVS structure to begin to understand the underpinning principles of the heart, arteries and veins. build upon these principles with regard to coronary heart disease and th...

Carbon dioxide levels, light and temperature

Anaerobic decay produces two main gases. Carbon dioxide and Methane.
Methane, more importantly, is one of the five greenhouse gases that results in global warming.

The heart is divided in half by a septum, giving a right side and a left side. Both sides will also be divided again and have an atrium on the top and a ventricle on the bottom. We will begin at the left ...