Because they provide the needed compounds that are necessary for the process of photosynthesis to undego.
Photosynthesis is the normal function among plants which create and synthesize sunlight, water and carbon dioxide into glucose and needed materials for cell processes. The ongoing process is needed and unique for every autotrophs because these mechanism is vital for every living organism to survive.
Answer - A The ratio of a child with clear skin with that of freckled skin is 1:2. When genotype rr mates with genotype Rr, the following genotypes are expected: Rr = clear skin dominant rr= freckled skin
