Respuesta :
The answer is the first one. The shaded, strong ring around the student of the eye in vertebrate creatures, situated between the cornea and focal point. Compression and development of the iris control the measure of the understudy, in this manner managing the measure of light achieving the retina.
Answer:
What is the difference between an iris-in and an iris-out? an iris-in begins with a small circle that expands, while an iris-out gradually closes an image. an iris-out begins with a small circle that expands, while an iris-in gradually closes an image. an iris-in is a transitional device in which shot b gradually appears over shot a, while an iris-out fades to black before shot b appears. an iris-out is a transitional device in which shot b gradually appears over shot a, while an iris-in fades to black before shot b appears?