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प्रश्न
Answer the following questions briefly:
Explain how the human eye adapts itself to bright light and dim light.
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उत्तर
The amount of light intering the eye is controlled by muscles of iris. The pupil become layer in less light to allow more light to goin and in bright light it consiricts to restrict the amount of light going in.
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संबंधित प्रश्न
Compare and contrast nervous and hormonal mechanisms for control and coordination in animals.
Name the structural and functional unit of the nervous system.
What is voluntary nervous system?
Name the two types of coordination which take place in our body.
Multiple choice question. Tick (✓) the correct choice:
The coloured part of the eye is called
- retina
- iris
- lens
- pupil
Name the following:
Thoracolumber region of spinal cord form.
Choose the correct answer.
More than one foot long cells of the body are __________
Differentiate between:
Afferent and Efferent Nerve.
Which nerve controls the movement of shoulder muscle and neck?
Which part of brain controls vomiting?
