Answer:
Phenotypic variation, then, is the variability in phenotypes that exists in a population. For example, people come in all shapes and sizes: height, weight, and body shape are phenotypes that vary. Hair, eye color, and the ability to roll your tongue are variable phenotypes, too
Explanation:
Answer:
that balance and coordination have improved
Explanation:
Holding your arms out helps you balance, so as that improves, kids pull their arms in
Explanation:
cut it off than let it grow
