Wich process producers only identical offspring

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

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only

Ecology can best be described as the study of what