The form of nitrogen used by plants to produce various amino acids, proteins, nucleic acids, and vitamins is .

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

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