Top answers

What is nitrogen fixation?

Nitrogen fixation is one stage of the nitrogen cycle. The nitrogen cycle describes the different transformations of the forms of nitrogen in nature. The nitrogen cycle is important because plants need nitrog...
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Answered by Eleanor B. • Biology tutor
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What is the equation for aerobic respiration in humans?

glucose+oxygen-->water+carbon dioxide c6h12o6+6o2-->6h2o+6co2
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Answered by Mara E. • Biology tutor
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How does the body regulate heat?

Body temperature is regulated by a thermoregulatory centre in the brain, the hypothalamus. The hypothalamus can sense the temperature of the blood via receptors. The skin also contains temperature receptors ...
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Answered by Natasha C. • Biology tutor
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How does the volume in the lungs change as we breathe?

As humans breathe in, the ribcage moves upwards and outwards. As this happens, the diaphragm flattens and moves down. This allows air to move into the lungs causing an increase in volume within the lungs. Th...
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Answered by Rebecca W. • Biology tutor
3484 Views

What are the different types of digestion, and where do they take place?

There are 2 types of digestion: mechanical digestion and chemical digestion. Examples of mechanical digestion are: chewing - in the mouth; and churning - in the stomach. Chemical digestion involved enzymes, ...
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Answered by Monique W. • Biology tutor
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