Question

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Answer 1

Receptors are groups of specialised cells. They can detect a change in the environment (stimulus ) and produce electrical impulses in response. Sense organs contain groups of receptors that respond to specific stimuli .

Answer 2

Answer:

Explanation:

Neurons

Neurons are specialized cells that are capable of sending electrical as well as chemical signals. Most neurons contain dendrites, which receive these signals, and axons that send signals to other neurons or tissues. There are four main types of neurons: unipolar, bipolar, multipolar, and pseudounipolar neurons.