Apopulation of domesticated sheep becomes stranded on a rocky island. over many years, the physical traits of the sheep population are altered. their wool became thicker and darker , their hooves became deeper and sturdier, and their ears became smaller and rounder. these changes are an example of which process?

This is an example of animals adapting to their environment. The sheep got sturdier hooves to stay balanced on the rocky island and they got darker wool to match the dark rocks for hiding when in danger.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.