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A walker falls through thin ice into very cold water. What does the body do to stop the core body temperature from falling too quickly?

The walker's body will do three things to help slow the decrease in core body temperature. The first is the walker will begin to shiver. Shivering is the spasming of muscles, the muscles as they work generat...
JT
Answered by Jack T. • Biology tutor
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Explain Charles Darwin's Theory of Evolution

Populations naturally vary . (Think of how people in your class vary in height, weight and other features) This variation is brought about by inheritance of genetic material from parents. In organisms that r...
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Answered by Lewis C. • Biology tutor
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How are specialised cells different to normal body cells?

Different parts of the body have very different functions, so it is important that the cells in these different parts have adapted in order to help the functioning to be more efficient. For example, red bloo...
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Answered by Sherrie J. • Biology tutor
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How does MRI work?

MRI stands for magnetic resonance imaging and uses the application of a magnetic field and radio frequency photons to manipulate the spin state of protons (hydrogen nuclei). Hydrogen is one of the most abund...
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Answered by Sebastian V. • Biology tutor
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What are the advantages of animals eating excess food and putting on weight for winter?

1) They put on fat which is a good insulator and allows the animal to retain its heat. 2) The animal in putting on weight will become larger and have a smaller surface area to volume ratio which also decreas...
AT
Answered by Ahmad T. • Biology tutor
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