The first organisms to move into an area after a primary disturbance are

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

Which excerpt from the land, part 4 best supports the claim that paul is a talented horseback rider? a/“figure that says more than anything else! now, i want to ride that stallion! " b/my daddy shook his head. "paul only rides horses he knows. ” c/? i glanced over at the other rider. the fellow was older than i, and had the weight of a man on him. d/a man out of alabama, man name of ray sutcliffe, told my daddy i was such a good rider, he wanted me to ride some races for him.

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