Nerve
Damage to nerve and blood vessels can cause lack of feeling in the extremities resulting in amputations.
Nerves are cable-like bundle of axons and specialized cells (neurons) which make up the nervous system. Nerves transmit messages as electrical signals from one area of the body to another. Nerves are classified into three groups based on the area that messages are conducted. They include; afferent nerves, efferent nerves, and mixed nerves which contain both afferent and efferent axons.
The answer would be mitochondria
The primary form of energy that the cell use are come from ATP. The body could produce ATP through different path of metabolism, but the highest amount of ATP produced from electron transport chain. Mitochondria is the main organelle of the cell that produce ATP because it allow the cells to do electron transport chain.
The first conditioning is the classical conditioning and it can be explained on an example of a dog that is producing saliva when it knows that it will be fed.
the second kind of conditioning is the operant conditioning. An example of an operant conditioning is a dog learning to open a box after it witnessed a ball being placed in it.
<span>Gill arches of jawless fishes</span>
Answer:
The answer is mitochondrion.
