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Explain how the human circulatory system is adapted to supply oxygen to the tissues and remove waste products from tissues.

The humans have a double circulatory system that allows blood to be distributed to the body at a higher blood pressure compared to the lungs. The heart is made of specialized cardiac muscle cells that have p...
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Answered by Dulan P. • Biology tutor
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What is the difference between mitosis and meiosis?

During my answer to the question I would use the whiteboard to draw out diagrams to explain mitosis and meiosis fully. Mitosis and meiosis are both cell division processes where chromosomes are doubled and c...
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Answered by Katharine B. • Biology tutor
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What is diffusion? Provide an example of this process in a biological system.

Diffusion refers to the process where particles (molecules and ions) move from an area of high concentration to an area of lower concentration . I would draw a diagram of the process and make it clear that p...
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Answered by Elizabeth H. • Biology tutor
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What is the general structure of an animal cell?

An animal cell consists of many sub-cellular structures that allow it to live and function as part of the animals body. The cell consists of a cell membrane which houses all the cells components. Because ani...
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Answered by Megan C. • Biology tutor
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How does digestion work?

Digestion is the process of breaking down the big molecules of food that we eat, into smaller molecules that the body can absorb and use. To help break down the food, we need enzymes, which the body produces...
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Answered by Surina T. • Biology tutor
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