Answer :

adamartin987

Answer:

they can change over time due to new discoveries being  made and as we all know we haven't finished exploring the world because everyday new discoveries are found and that will make the theories to start changing.

Explanation:

gracebforever

Reinterpretation and new discoveries are constantly upon us, and they may change what we once thought about a fossil of the evolution of life. As these new ideas surface, scientists can use the scientific method to refine theories and continue research to thoroughly answer questions.

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