Help me please this is a test

Mr. olajuwan was in a horrific snowmobile accident. afterwards he had trouble walking and he had a loss of balance. which of the 4 major brain region was probably demaged

What is the next step in muscle contraction after the actin changes shape? (apex)

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?