how does your eyes get patterns? like i know how they get color, but how do they form a pupil and this little design around the pupil?

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

What is a population? a. all the members of the same species living in the same ecosystem at the same time b. the number of a species living in the same ecosystem over a period of time c. the total number of organisms living in an ecosystem at a point in time d. all the members of a food web in the same ecosystem

The information in the diagram best support which hypothesis