It could be said that the astronomer who placed the sun in the center of the solar system was Copernicus.
He developed the model of the universe that placed the Sun in the center rather than the Earth. It was considered the Copernican Revolution because of its contribution to science and the change of paradigm.
It's the Immune system!
good luck
Answer:
They contain protein fibres that can contract when energy is available, making the cells shorter.
The cerebrum is the largest region of the brain
