What is the meaning of endogenic

Which sentence best expresses the differing opinions of these two book reviews?

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

Which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a.doing door-to-door sellingb.using billboards to advertise the productsc. making online shopping services availabled.giving discounts on products