1. Explain how allelic variation in people has allowed some people to be exposed to HIV many times without becoming infected and progressing to AIDS

Give the medical names for the bones described: collar bone shoulder blade wrist bones thigh bobe kneecap upper arm bone breast bone finger bones shin bone

Rectangle pqrs has vertices p(1, 4), q(6, 4), r(6, 1), and s(1, 1). without graphing, find the new coordinates of the vertices of the rectangle after a reflection over the x-axis and then another reflection over the y-axis.

Describe the effects and potential risks associated with pica. include lead poisoning in the discussion.