A major disturbance that caused the ecosystem to stabilize a new equilibrium

As a small change in a person's dna can cause a genetic disorder

There are only about 250,000 known fossil species. true or false

If t=tall and t=short what will be the physical appearance of the offspring the cross below? a. some will be tall and some will be short b. they will all be tall c. they will all be short d. they will be medium height