Disruptive selection describes changes in population genetics in which extreme values for a trait are favored over intermediate values.
Photo receptors are attached to the retina and are most numerous specifically at the fovea
Answer:Texas cichlid (Herichthys cyanoguttatus)
Explanation:
Texas cichlid (Herichthys cyanoguttatus, ex. Cichlasoma cyanoguttatum) is a large, good looking and at that rather aggressive cichlid fish. In the wild it inhabits in rivers of Texas (for example, Rio Grande, due to which the fish got its name Rio Grande cichlid) and in North Mexico.
The difference between plant cells and animal cells is that most animal cells are round whereas most plant cells are rectangular. Plant cells have a rigid cell wall that surrounds the cell membrane. Animal cells do not have a cell wall.
