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Biology
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How does osmosis work?

Thinking of osmosis represented by two water towers attatched with a pipe at the bottom helped me to understand. If one tower has a higher level of water than the other, water will flow into the other ...

HB
Answered by Helena B. Biology tutor
2683 Views

What are emergent properties?

Multicellular organisms show emergent properties; these are properties that exist due to many different components working together. For example, your lungs work and help you breathe due to all of the ...

HA
Answered by Helen A. Biology tutor
20340 Views

Explain how an impulse is transmitted between nerve cells.

An impulse reaches the pre-synaptic neurone, as it does so, the impulse stimulates voltage-gated calcium channels to open, allowing an influx of calcium ions into the pre-synaptic bouton. This stimulat...

JK
Answered by Jasmine K. Biology tutor
3454 Views

Why is the overuse of antibiotics dangerous?

It can lead to an increase in the population size of strains of antibiotic-resistant bacteria, such as MRSA

SA
Answered by Suzy A. Biology tutor
3620 Views

What factors affect photosynthesis and why?

Temperature - the light-independent reaction is temperature sensitive due to being enzymed controlled

CO2 - Is needed as a source of carbon

Light intensity- Needed to 'excit...

MO
Answered by Millie O. Biology tutor
2512 Views

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