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Describe the route in which blood runs through the human heart

Blood is carried from the body to the heart via the Super Vena cavaIt enters the heart first into the right atrium before going through the right atrioventricular (tricuspid) valve into the right ventricle I...
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Answered by Simrit B. • Biology tutor
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What is osmosis?

The movement of water molecules from an area of high water concentration to an area of low water concentration.
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Answered by Chuks O. • Biology tutor
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Describe how a Red Blood Cell's structure is related to its function

It has a bi-concave shape which means that it has a larger surface area, so that more Oxygen and Carbon Dioxide can move in and out.It has no nucleus to allow maximum amounts of haemoglobin (a protein that c...
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Answered by Monisha G. • Biology tutor
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Where are chromosomes found? A.Cytoplasm B. Nucleus C. Ribosomes D. Vacuole

B. Nucleus
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What is a catalyst?

A substance which increases the rate of a reaction without being consumed
Answered by • Biology tutor
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