No links please :( If there are 21,000 Joules (J) of energy available to the producers, how much energy will be transferred to the next trophic level?

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

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

As scientist had investigated evolution from a variety fields they have found