Which statement about Niels Bohr’s atomic model is true?
Higher orbits have lower energies.
Each orbit has a specific energy level.
Electrons can exist in any energy level.
Orbits close to the nucleus have no energy.

a. a clone will be physically identical to the original, but won’t be genetically identical

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the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.