Why do different blood types exist?

What is a quick method use only to only partially cooked item

According to harry harlow’s experiment what behavior did the baby monkeys exhibit when the cloth mother was present? a. they cowered in the corner of the room. b. they were willing to explore the room. c. they sought refuge with the wire mother. d. he behaved aggressively toward the cloth mother.

Brian is admitted to the hospital after a motor vehicle crash. during his stay at the hospital, physical therapists him with his recovery. this is care?