What macromolecule is often made of three fatty acids bound to a glycerol molecule? a. lipids b. nucleic acids c. proteins d. carbohydrates apex plz asap

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.