<em><u>Photoreceptor</u></em><em><u> is a specialized light receptor that is able to detect and react to light. This type of a receptor is found in the eyes.</u></em>
<em><u>Mechanoreceptors </u></em><em><u>are receptors that provides an organism with information about mechanical changes in the environment, such as tension, pressure and movement. They are found on the skin</u></em>
<em><u>Olfactory </u></em><em><u>receptors are type of chemoreceptors receptors that are responsible for odorants which give rise to the sense of smell. They are located in the olfactor receptor found in the nasal cavity.</u></em>
<em><u>Chemoreceptors</u></em><em><u> are sensory receptors that respond to stimuli chemicals. They are sensitive to substances taken into the mouth, inhaled to the nose, or found in the body. Therefore they may found on the tongue in the mouth.</u></em>