It started in the 1870's and it ended in the 1950's
Hoped This Helped
Answer:
Anatomy
Explanation:
Galen contribute tremendously to the understanding of the respiratory system, blood and the circulatory system.
I think it would be options 1 and 2, these seem to make the most sense.
I do not understand what exactly your question is but,
The 3 branches are the <u><em>Executive</em></u> branch, <em><u>Legislative</u></em> branch, and <em><u>Judicial</u></em> branch.
The <em>Legislative</em> branch <em>makes the laws</em>.
The <em>Executive</em> branch <em>enforces laws or put them in action</em>.
The <em>Judicial</em> branch <em>passes the law</em>.
This separation is called <u><em>"The Separation of Powers"</em></u>.
