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Biology
GCSE

What is diffusion?

Diffusion is the net movement of particles from an area of high concentration to an area of low concentration. This means that the particles of a substance move from where there is lots of it to where the...

Answered by Rhiannon J. Biology tutor
2684 Views

Explain 2 limiting factors of photosynthesis and how can they be removed

There are many limiting factors of photosynthesis (light, temperature, water, carbon dioxide) but we'll focus on light and temperature: Chlorophyll absorbs light at certain wavelengths and light needs to ...

Answered by Nikita S. Biology tutor
2227 Views

How does vaccination prevent illness?

When a person is vaccinated, a small amount of dead or inactive pathogen (that they are being vaccinated against) is introduced into their body. This stimulates the white blood cells to produce antibodies...

Answered by Freya T. Biology tutor
2050 Views

What are the differences between plant and animal cells?

For your GCSE, you need to know that there are three main differences between plant and animal cells:Plant cells have a cellulose cell wall while animal cells do not.Plant cells have chlo...

Answered by Yara A. Biology tutor
2284 Views

How do you calculate relative frequency?

Relative frequency is the number of times an event occurs divided by the total number of trials conducted.
So for example, suppose you toss a coin 15 times, and it lands on heads 8 times and tails 7...

Answered by Yara A. Biology tutor
2065 Views

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