Because Nitrogen is required to biosynthesize basic building blocks of plants, animals and other life forms.
Answer:
A chemical symbol is a notation of one or two letters representing a chemical element.
Na2co3`s use :
It is used in photography
It is used as bleaching of wool
A mutation is a change in the DNA sequence.
Don’t really know what it is just need points end
Skeletal muscles have striated structure similar to cardiac muscles. But smooth muscles are spindle shaped and feature no striations.