Should be prophase because chromatin coils up, becoming shorter and thicker, thick enough to become visible when stained.
One factor is resting and exercising
stress and peace
The BEST example of technological design is researching a disease resistant corn hybrid.
It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.