Iron, water, sugar, salt, nitrogen gas, and oxygen gas
Measure the amount of chemical used, measure the mass before and after
The ones about enzymes are chemical digestion and the ones about chewing are mechanical digestion.
My guess would be burning the waste
The answer is letter D. The macronucleus is not exchanged during conjugation. <span>It normally contains the working duplicates/copies of genes necessary to support an enormous cell. Macronucleus is formed by a direct division of the polyploid nucleus right after conjugation then followed by series of internal gene replication that is not oftenly occurring in micronucleuse.</span>
