I have a feeling it's when they are embryos.
Process by which rocks and minerals undergo a change in their compostion
The answer is B, nucleic acids!
Answer:
All cells have plasma membranes. Can molecules enter and leave the cell? Yes. The plasma membrane (also called the cell membrane), is a lipid barrier where molecule organelles live. The golgi ( a cell organelle) helps move the proteins across the plasma membarane. Proteins cannot move through the plasma membrane barrier by themselves because they are not small enough like water.
Explanation:
Hope this helps. :) P.S. Can I be marked brainliest . . . ? :)
An undifferentiated cell of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation.
