<span>B. es
</span>
We use "es" to refer where someone is from.
Explanation:
in dim light the iris contract ,the the pupils widens to allow more light to enter the eye,in bright light the iris relaxes and size of pupil becomes smaller to reduce amount of light entering the eye. NOTE: the muscle do not expand they either contract and relaxes
Louder, because the sound would have a stronger pitch for the ear it is closer to
The answer would be b, emigration because emigration means to leave an area to go to another one, and all those factors would result in the animals leaving.