Assuming that a population of stem cells will double every five days, and you start with a bone marrow stem cell donation weighing 0.5 pound (0.23 kilogram), how long will it take to get enough bone marrow for your patient?

Aplant has an egg with 34 chromosomes how many chromosomes does a leaf cell of that plant have

Which are forms of nitrogen that are usable by humans

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