Answer:
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Explanation:
Answer:
Explanation: Sensory receptor interact with stimuli, such as light sound temperature and pain which is transformed into the code that is carried to the brain by the chain of neurons. Once the signal reaches he end of an axon, which is at the end of neuron, a neurotransmitter is released and the process repeats.
1. State changes are physical. Example: a ice cube melting is a state change from a solid to a liquid. This is a physical change because its just changing its form, its still the same substance.
2. latent heat