There is not any options but the parts of Lac Operon is:
Promoter
Repressor
Operator
Genes
Hope this helps!
Cellulose. Our bodies as humans lack enzymes to break the cellulose down.
Aceibitorshope this helps
Probably a hinge joint or a tendon.
Scientists classify rocks based on texture, composition, and how the rocks formed.] Rocks are classified by how they formed.
