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What is the all-or-nothing principle?

The all- or-nothing-law is related to neurons and is the idea that a neuron can only have a full response (fire an action potential) or no response to a stimulus due to its threshold.Once the resting potenti...
Answered by • Biology tutor
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Describe the structure of a protein

There are four structures of a protein: the primary, secondary and tertiary. Primary is the sequence of amino acids in the protein. The secondary structure is the way the protein is either folded into a plea...
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What is a common law system?

A common law system is the term used to denote the type of legal tradition we have in the UK. The term also describes what our sources of law are. Other areas of the world - such as European countries - have...
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Answered by Katharine C. • Law tutor
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What is the pressure of one mole of an ideal gas at 273 K and in a volume of 1m3

This question uses the ideal gas equation. pV = nRT where the temperature is in Kelvin, the pressure in pascals and the volume in m3. To obtain the number of moles the equation is rearranged to give p = nRT/...
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Answered by Maya H. • Chemistry tutor
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What are the characteristics of perfect competition?

Homogeneous goods, Firms are price takers, An infinite number of suppliers and producers, Firms are profit maximisers, There are no barriers to entry, Producers have perfect information
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