Lesson 2: biology semester b test biology b unit 5: biology semester a review and test if you have the answers can you post them.

What do all macromolecules have in common with each other? oa. they all are formed from the same elements. ob. they all have major roles in cell membranesoc. they all act as catalysts in the body. od. they all have peptide bonds between carbon atoms.

Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin