Neurons that detect light stimuli are
a) photoreceptors
b) olfactory receptors
c) chemoreceptors
d) mechanoreceptors

The correct answer is option A, Photoreceptors

Explanation:

Photoreceptors basically function by changing their color when exposed to light. In human body photoreceptors are  found in the eyes. When light strike on the photoreceptors, electrical signals are generated which are sent to the brain through the optic nerves. Human eye has two types of photoreceptors- Rods and Cones. Rods detect light sensation while cones detect the color.  

1: the largest region of the brain is the:

  cerebrum

2. the term "psychology" literally means:

the process or procedure of the science or study of the mind.

3. the area of the brain responsible for respiration, heart rate, and smooth muscle control of our blood vessels is t

medulla oblongata

4. the structure that conducts nerve impulses to and from the brain and serves as a reflex center for some sensory information without input from the brain is the:

spinal cord

5. the three-layered membrane that covers the brain and spinal cord and literally means membrane is called the:

meninges

6. the cord-like (string-like) structures that carry bio-electrical impulses from one part of the body to another are called

nerves

7. a group of nerve cell bodies that are found outside of the spinal cord and brain are referred to as:

ganglions or ganglia (pl.) “literal meaning knot”

8. the term that means spinal cord inflammation is:

myel/itis