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describe the structure of the cardiovascular system, considering causes, resulting outcomes and treatment of coronary heart disease (CHD)

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 the p...
RM
Answered by Raffaele M. • Biology tutor
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What are three factors that can affect the rate of photosynthesis?

Carbon dioxide levels, light and temperature
ME
Answered by Maria E. • Biology tutor
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An airtight compost heap causes anaerobic decay. Explain why the gardener might be against producing compost using this method

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.
JP
Answered by Jananiy P. • Biology tutor
12530 Views

Can you explain the circulatory system of the blood?

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 ven...
AS
Answered by Annabel S. • Biology tutor
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What is the difference between xylem and phloem?

Plants have both xylem and phloem. The xylem is a tube which runs from the very ends of the roots to all other parts of the plant. Xylem transport water and minerals around the plant . Xylem are tough- they ...
BE
Answered by Britannie E. • Biology tutor
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