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Explain how vaccines work.

Vaccinations are an injection of small amount of a dead or weakened form of a pathogen that provoke a primary immune response. This causes the body to produce the correct antibodies to remove the pathogen...

Answered by Eleanor M. • Biology tutor

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Explain antibiotic resistance in bacteria and its evolution.

Antibiotics are used as medicine to treat bacterial diseases. Bacterial diseases are the result of populations of bacteria, and bacteria within these populations are not all equally susceptible to antibio...

Answered by • Biology tutor

2883 Views

What's the difference between facilitated diffusion and active transport?

I can see why you could get these two mixed up as both are movements of molecules which require a transport protein. There are, however, key differences between the two.Facilitated diffusion(FD) is a

Answered by Fazna R. • Biology tutor

8751 Views

Describe the reflex arc in response to the hand touching a burning hot stove. Include the names and a description of location and function of all neurons involved. Bullet points are sufficient.

All bold text gives marking pointsStimulus (burning hot stove)Receptor (thermoreceptor in skin) detects stimulusSensory neurone - relays...

Answered by Jonathan V. • Biology tutor

5196 Views

Explain how the structure of an egg cell is related to its function.

The egg cell is a specialised germ cell which has a haploid number of chromosomes in order to allow restoration of diploid number (46) at the time of fertilisation.The egg cell contains lipid droplets to ...

Answered by NESRIN G. • Biology tutor

20437 Views