Melanin is a pigment that is produced by cells known as melanocytes in the skin of most animals, including humans. ...
cells are basic building block of living things.
I think the answer would be 52cm:24cm ratio but don't take my word for it
B) Photosynthesis The Sun is the ultimate source of all energy in the universe. Plants being the main primary producers or autotrophs, use solar energy to make their own food through photosynthesis, thus converting energy into the organic matter that can be consumed by all organisms. They form the basis of almost all food chains from where consumers derive their food.
