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Explain how a fish is adapted for gas exchange?

A fish had gills, made up of gill filaments containing lamellae, which provide a very large surface area for oxygen to diffuse out of the water as it moves over them. The blood vessels are in very close prox...
Answered by • Biology tutor
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How do anti-bumping granules work?

Anti-bumping granules prevent explosive boiling, as they provide a large surface area for bubbles to form on.
Answered by • Chemistry tutor
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Suggest why the concentration of sodium hydroxide in a solution slowly decreases when left open to air

NaOH reacts with carbon dioxide in open air
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Answered by Adam K. • Chemistry tutor
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Explain how an activated oestrogen receptor affects the target cell?

The activated oestrogen receptor binds to the promoter region of the specific gene. It then stimulates RNA polymerase to transcribe the gene, thus increasing transcription.
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Answered by Adam K. • Biology tutor
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Differentiate the equation x^2 + 2y^2 = 4x

2X + 4Y (dy/dx) = 4 4Y (dy/dx) = 4 - 2X dy/dx = (4 - 2X) / 4Y
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Answered by Adam K. • Maths tutor
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