When all forces acting on the object are in the same direction
I believe the correct answer is the second option, or b.
Answer:
Hmm.
Explanation:
The plasma membrane is the organelle that encapsulates the contents of the cell. Apart from encapsulating cell contents, the plasma membrane also plays a vital role in regulating the movement of substances in and out of the cell.
The theory is likely wrong - the theory must then be rejected and a new theory should be proposed, one that will lead to a new hypothesis which then should be tested.
The influx of calcium ions into the axon terminal triggers exocytosis.
