If a red blood cell has no a or b proteins on it but does have rh proteins, what blood type is the red blood cell?
o+
b-
ab-
a+

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

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.

In what for do plants utilize nitrogen? why do they need nitrogen?