I really need to know this pls help me

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

How does the study of genetic disorders such as pku biologists understand normal alleles?

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?