. Amirah and her sister have entirely different features and traits. Amirah has blond hair and brown eyes, but her sister has red hair and blue eyes. What causes variations in traits like hair color, eye color, and height?

Which is true of the regious near earth equator

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Give two examples of what would occur if one of the pairs did not match or had an extra chromosomes. explain how this might occur, and if it would be dangerous to the individual. fast.