In the positive feedback mechanism governing breastfeeding the mammary glands of the breast serve as

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

Which of the follow describes a disadvantage secondary sources have compared to primary sources?

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?