Answer;
The human eye contains more rods than cones photoreceptors.
Explanation;
-The retina of the human eye is the back part of the eye that contains the cells that respond to light. These specialized cells are called photoreceptors. There are 2 types of photoreceptors in the retina: rods and cones.
-The rods are most sensitive to light and dark changes, shape and movement and contain only one type of light-sensitive pigment. Rods are more numerous than cones in the periphery of the retina. The cones are not as sensitive to light as the rods. However, cones are most sensitive to one of three different colors (green, red or blue).
Answer:
D
Explanation:
coughing when the throat is irritated
A single muscle cell is called a myocyte. Inside are sliding filaments called sarcomeres.
Answer:
The three parts of an amino acid are the carboxyl group, the amino group, and the central carbon that contains the R group.