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How are the alveoli adapated for gas exchange

Blood leaves the right side of the heart via the pulmonary artery, which takes deoxygenated blood to the lungs so gas exchange may occur. Numerous alveoli are found here and these alveoli possess many inv...

MA
Answered by Maryam A. Biology tutor
2121 Views

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...

EM
Answered by Eleanor M. Biology tutor
3066 Views

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
2310 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

FR
Answered by Fazna R. Biology tutor
7161 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...

JV
Answered by Jonathan V. Biology tutor
3674 Views

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