In your own words fully describe what is happening in each stage of mitosis. Be sure to include in your answer the terms “ spindle fibers”, “centrioles” and “nuclear envelope”

answer; ///(b) it is composed of four protein chains and four heme groups;

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

a covalent bond, specfically triple bond