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.
The answer is that both produce carbohydrates and water.
Plants to do it in a process called photosynthesis, and they produce oxygen as well and sulfur bacteria do it in a process called chemo-synthesis, and they produce sulfur apart from carbohydrates and water.
Only plant cells have chloroplasts, you could say plant and eukaryotic cells ig?
