Meiosis is when the cells divide so I’m going. To say it is b
The hypothesis is the question you are trying to answer or the problem you need to figure out, it is kind of like a starting point
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.
If an anthropod does not change it's form except for increasing its size, this change would be considered an incomplete metamorphosis.