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What are the main parts of the digestive system, and how are they involved in digestion?

The main parts of the digestive system are the... - mouth - oesophagus - stomach - liver - gall bladder - pancreas - small intestine - large intestine There are three main enzymes involved in digestion: Amyl...
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Answered by Heather D. • Biology tutor
16539 Views

What factors contribute to phenotypic variation between organisms?

Let us first understand what is meant by the term "phenotypic variation". Simply, the phenotype of an organism is its observable characteristics - like how it looks, how it behaves, and so on. Diff...
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Answered by Faheem M. • Biology tutor
17192 Views

How is oxygen moved from the lungs to the blood?

When oxygen reaches the alveoli of the lunngs, it diffuses into the blood. The oxygen enters the red blood cells and combines with the haemoglobin to form oxyhaemoglobin. When the red blood cells reach the t...
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Why is it important to regulate body temperature? What is the role of our skin in regulating our body temperature?

Our skin is responsible for ensuring that, when our surroundings get too hot, our body temperature doesn't spike up to unhealthy levels. Likewise, when our surroundings get too cold, our skin plays a role in...
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Answered by Kartika A. • Biology tutor
85006 Views

What is diffusion and why is it important in both animals and plants?

Diffusion is a passive process involving the movement of molecules from a region of a higher concentration to one of a lower concentration (the term passive means that the process does not require an input o...
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Answered by Mathew C. • Biology tutor
186461 Views