Answer please! For my test. In polymerization, macromolecules are formed by joining .
1.) polymers
2.)carbohydrates
3.)monomers
4.)proteins

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit