Polydactylism occurs a. only in cats b. only in humans c. in less than one in 1000 children d. more commonly in certain populations, such as the amish

Using the periodic table, determine which material is most likely a good conductor

According to the cladogram, which organisms have roundworms as a common ancestor?

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.