Ryan was a highly sensitive baby. he cried easily and fidgeted often. as a child, he was loud and outgoing. around the time he entered adolescence, he became quiet, reserved, and more serious, and then remained like this throughout his adult life. theorists would argue that ryan’s personality may have been modified by interacting with his

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.