The answer is living cells.
When an external stimulus crosses the threshold, a muscle fibre will respond.
<h3>The level of the threshold</h3>
- For the identification of the electrical activity carried out by the active muscles, the threshold level is a crucial consideration.
- A portion of the electrical activity carried out by the target muscles may be excluded if the chosen threshold level is higher than the overall activity.
<h3>What is the stimulus threshold for muscle contraction?</h3>
- A certain stimulus magnitude is necessary for muscle contraction.
- The threshold stimulus is the smallest amount of force needed for a stimulus to cause a muscle to contract in response.
- If the stimulus intensity is less than this threshold value, there is no response.
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Answer:
D. magnetism, electrical conductivity, high melting point
Explanation:
Magnetism is the property of metal due to which they are attracted by magnets. Metals have high electrical conductivity which means they are good conductors of electricity. They also have high melting points i. e. they require high amount of heat to change its solid state into liquid state. In melting, bonds are broken down due to the applicable of heat energy.
Answer:
hurricane, tornado, drought, flood
Explanation:
Protiens are very important and they are regarded beneficial
The protiens and peptides differ in their size protiens are relatively small
There are soi many difference among both because
<span>Several amino acid sequences are possible for proteins and peptides
</span>As there are 20 amino acids and different folding structure
so correct option is A
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