In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".
Answer:
Yes. If you're trying to solve a multiple choice question, you'll need to put in the answer choices, but here is what i think.
Explanation:
The Copernican Revolution gives us an important framework for understanding the Universe. The Universe and everything in it can be understood and predicted using a set of basic physical laws. The entire Universe obeys the same physical laws everywhere (and at all times).
Answer:
A substance that cannot be broken down into chemically simpler components is an element.
A substance that can be broken down into chemically simpler components (because it has more than 1 element) is a compound. Example: Water id a compound composed of elements hydrogen and oxygen.
