cell division occurs in two stages division of the nucleus called ___ and division of the cytoplasm called ___

How was the climate when the ambulocetus was alive

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

In which state was more than 100 billion tons of coal mined in 2005?