Delia is teaching her sister about important molecules in the body. She tells her sister that one molecule provides a set of instructions that determines traits, such as eyecolor or hair color. Which molecule is Delia describing?
Pls help !!

answer is A

Explanation:

the speed increase from w to x due to increased gravity force

the speed decreases from x to y due to decrease in gravity

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.