What does “the co-evolution of earths surface and life on earth led to periods of stability and change over geologic time” mean?

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

The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.