Describe the role of the immune system in fighting disease

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

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

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water