Apurebred chicken with white feathers is crossed with a purebred chicken that has black feathers. each of their offspring has both black and white feathers. why does this happen?

Iwill make you brainliest pleeze answer this fast i have to turn it in really soon brainliest promise easy question 6th grade ! a weather map shows a high pressure system with circles around it. what does this mean? a) an occluded front b) areas of equal altitude c) areas of equal pressure d) a stationary front