Answer:
1. pupil
2. retina
3. optic nerve
Explanation:
The PUPIL of the eye bends the light rays and focuses them on the rear inner lining called RETINA. Then the image is then relayed through the OPTIC NERVE to the brain.
It gives a chance for your muscles to get ready and give more of “ no pain “ because you already got prepared
your heart speeds up so more blood can reach your muscles. Muscles use oxygen to create the stuff needed for the work in exercise.your heart rate returns to its normal or resting rate fairly quickly
A lot of the army crew, if they have to make a trench they would have to send their men to the front line where there is gunfire.
