They can both be used to identify organisms. Also, the phenotype of an organism is different depending on the genotype of the organism, making them relate to one another.
Hope this helps. Good luck! :)
A, observations.. You don't come up with conclusions before hypotheses, and the contact with other scientists is just a dumb answer
An independent variable is purposefully changed so the answer is A.
Answer:
Organisms of the same species must live in similar climates, while organisms of the same population can live in different ecosystems with different climates.
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