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Biology
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How would you differentiate the proximal and distal convoluted tubules using light microscopy. Explain your answer.

Using a light microscope, the lumen of the proximal convoluted tubule appears 'hairy' due to the presence of a brush border of microvilli. However, the lumen of the distal convoluted tubu...

Answered by Sito E. Biology tutor
3426 Views

Name how the structure of the three main blood vessels are adapted to their function.

A) Arteries - Arteries carry blood away from the heart at high blood pressure. Therefore they have a thick muscle layer and elastic tissue in their walls to cope with and maintain the high blood pressure ...

Answered by Christa E. Biology tutor
2546 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
2180 Views

Explain how polymerase chain reaction is used in DNA fingerprinting

DNA extracted from a crime scene is normally available in small quantities so PCR can be used to amplify this quantity to a reasonable concentration which can then be used to run a gel electrophoresis to ...

Answered by Nikita S. Biology tutor
10122 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
2019 Views

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