What internal condition is being maintained by the dilation and construction of pupils when lights are turned off and on?

What type of genetic drift would be simulated if all the beans that were not selected died out?

Which of the following situations describes a adaptation for a mole? question 2 options: a mole is blind and cannot see underground. a mole is bright and attracts the attention of predator birds. a mole has a sensitive sense of smell to it find food underground.

Describe the layers of the suns atmosphere?