Answer: it’s d preindustrial
Explanation:
I just took it
1. natural selection acts on existing traits because you can not evolve into something you didn't have
2. original structures evolve to accomplish new function in order to survive
People with O+ blood cannot donate their blood to negative blood types, while people with O- blood can donate to any blood type. This makes them the "universal donor." However, they can only receive O- blood.
Answer:
Lightning
Explanation:
The term plasma referred to that condition when the electrons are "freed" from their host atoms for a short time. It happens due to the high temperatures.
Lightning is a plasma because when a column of electrons moves from sky to ground, the air that it passes through lights up with energy. What we see as lightning is the air. In this air, the electrons are excited and giving off light. We see it as a light.
From this brief discussion, we can say that as electrons become free and become excited and then give light, lighting is a plasma.
