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Difference in structure of arteries and veins and how this relates to their function

Blood vessels allow blood to be circulated around the whole body for delivery of oxygen/nutrients and removal of waste products. The structure of arteries and veins helps them to perform their specific funct...
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Answered by Dougal T. • Biology tutor
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How are plant leaves adapted for photosynthesis?

Key Factors of Photosynthesis:LightWaterC02Therefore, adaptations are to maximise the absorption/use of these substances. Large surface area = maximum light absorptionThin, flattened surface = smaller diffus...
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Answered by Ella H. • Biology tutor
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Describe what happens in each stage in the cell cycle.

Stage 1: Cell growth DNA replication Stage 2: MitosisNucleus dividesChromosomes separate Stage 3: CytokinesisCell membrane dividesTwo genetically identical cells form
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Answered by Ella W. • Biology tutor
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Describe the function of the heart

The heart is a muscle and its primary function is to pump oxygenated blood around the body and to receive deoxygenated blood from around the body. The left and right side have different functions and the hea...
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Answered by Ndidi E. • Biology tutor
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Sperm cells and muscle cells are both specialised animal cells. Outline one way in which these two cells are different.

Sperm cell is haploid whereas muscle cell is diploid
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Answered by Isobel M. • Biology tutor
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