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What is a gene?

A gene is a small section of DNA which codes for a single protein. DNA is made up of a linear sequence of nucleic acids, which may be either A, T, C or G. Three nucleic acids make up a code for one amino aci...
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Answered by Rosie A. • Biology tutor
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What is the difference between type 1 and type 2 diabetes?

Type 1 diabetes is an auto-immune condition. The body has developed an immune response to the cells of the pancreas that produce insulin. Therefore, insufficient to no insulin is produced. Type 1 diabetes is...
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Answered by Jessica B. • Biology tutor
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How does the body control blood sugar?

The level of sugar ( glucose ) in the blood is monitored by the pancreas. When blood sugar is too high, the hormone insulin is produced by the pancreas and released into the blood stream. Insulin promotes su...
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Answered by Jessica B. • Biology tutor
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Homeostasis is the maintenance of a constant internal environment i) Explain how shivering helps to regulate body temperate. ii) Explain how sweating helps to regulate body temperature (4 marks)

i) Explain how shivering helps to regulate body temperature. Shivering stops body temperature from falling when the external environment is cold (1)Shivering increases muscle contraction (1) Heat is generate...
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What is the definition of diffusion

When molecules from an area of high concentration move to a place of lower concentration, down a concentration gradient, until evenly spread
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Answered by Pratyush P. • Biology tutor
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