What is the point of inserting needles into incorrect places? A.
it controls for whether the insertion point influences the specific body part
B. O it controls for whether the scientist knows which patient gets the treatment
c. O it controls for whether the person can feel the needle
D. O it controls for whether needles are necessary

Adaptive radiations can be a direct consequence of four of the following five factors. selectthe exception. a) vacant ecological niches b) genetic drift c) colonization of an isolated region that contains suitable habitat and few competitor species d) evolutionary innovation e) an adaptive radiation in a group of organisms (such as plants) that another group uses as food