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Describe how the sperm cell is adapted to its function.

The sperm cell is adapted to its function in multiple ways:It has a tail which enables it to swim towards the egg.The middle section of the cell is packed with mitochondria. This allows it to release the ene...
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Answered by Huw H. • Biology tutor
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How should I write and structure my essays?

Planning your essay is the most important step to writing your essay. Every good history essay has judgements, specific evidence and analysis. To actually write the essay you need to ensure you are aware of ...
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Answered by Maqsood H. • History tutor
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What's the quadratic formula used for?

Firstly, it's important to understand what the formula is. It is essentially a re-arrangement of a quadratic equation, however the formula can be learnt so that it can be applied quickly within an exam conte...
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Answered by James H. • Maths tutor
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factorise x^2 - x - 6

Answered in interview
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Answered by Kushal C. • Maths tutor
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How do I get full marks for this question "Describe how a vaccination leads to antibody production" ?

Mark 1: What is a vaccine? A vaccine contains antigens from an inactive form of a specific pathogen. Mark 2: Which cells are first to respond to the antigen? Antigen presenting cells such as macrophages pres...
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Answered by Chloe T. • Biology tutor
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