Same
<span>Homologous structures refer to structures that have similar characteristics in terms of morphology, anatomy, genetics, and embryology yet still different when their functions are concerned. On the other hand, analogous structures are those organisms that have similar lifestyle because they live in the same habitat yet they belong in different groups.</span>
Answer:
oxygen, let me know if this helps
The important part of the text is the following:
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"Their most important non-carrion food is fish, which they catch by
swooping down and grabbing fish that are near the surface of the water."
We know here that in order to survive, the Bald Eagle needs access to the water - and this water cannot be frozen. So the less ice cover there is, the more food it can obtain!
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You should only change one factor in an experiment, so that if something different happens, you know what probably caused it.
