Retina
The retina is the part of the eye which converts light into electrical impulses with its photoreceptor cells (rods and cones) to the brain. Vision is achieved when light enters the pupil, focused by the lens, and converted into signals in the retina.
Answer:
The correct answer is D. A and B only
Explanation:
Stress can be both positive and negative depending upon the situation or circumstances. For example, upcoming pregnancy, holiday, or wedding comes under positive stress.
In negative stress which is also called distress persons feel anxiety because he is not able to cope up with the situation. It can lead to depression.
In stress, our sympathetic nervous system which is a part of the autonomic nervous system contributes to initiate a physical response called fight and flight response in the body to cope up with stress. Therefore the correct answer is D.
Physical activity<span> is any movement one does is actually </span>physical activity. Exercise<span> is planned, structured, repetitive and intentional movement intended to improve or maintain </span>physical<span> fitness</span>
The only thing wrong that I can currently see is that there is no data to base my answer off of.
Answer:
OB. Enzyme activity reduces the amount of activation energy needed for a reaction to occur.
