Question

(a) Have you ever thought how do you feel the climatic changes in the environment?

Answer 1

Part 1: Introduction
We humans are able to touch,smell,hear, taste primarily because of our sense organs.Given below are the sense organs in human beings:
1) Sense of sight- Eye
2) Sense of hearing- Ear
3) Sense of smell- Nose
4) Sense of taste- Tongue
5) Sense of touch- Skin
These senses are perceived by means of various sensory structures. It helps an organism to respond to stimuli, gather and process the information about the changes in its immediate environment. For example -to perceive the sense of hearing sensory organ ear receive the respective stimuli and help generate the appropriate response.

Part 2:Detection of environmental changes

• Skin is a sense organ responsible for sensation of touch, heat, cold etc.
• Skin has thermoreceptors that receive different stimuli related to touch, temperature, pain etc.
• If there is any climatic change (change in temperature) in an environment, it will be sensed by the receptors of skin and sent to the brain.
• In the brain this information will be processed and an appropriate response will be given.