You would most likely find it in the plants stem.
I think it might be lyosomes as they help break down waste and other stuff in a cell.
The telescope I feel like is one of the most important one
Answer: Possession of Valves
Explanation: Veins possess valves which ensures that blood flows in only one direction. Valves helps blood to flow back to the heart against gravitational force.
Arteries don't have valves because the pressure originating from the heart is capable of causing the blood to flow in one direction.
