In humans, having freckles is dominant over not having freckles. Jodle and Brian are both hybrid (Ft) for freckles. They have four children. What is the chance that each child has freckles? (Remember that with each birth, the chance of
having a child with or without freckles starts over.

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?