Does anyone know this?

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Is there any solid scientific evidence that humans have been cloned?