Enzymes<span> are protein catalysts that speed biochemical </span>reactions<span> by facilitating the molecular rearrangements that support cell function.
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The ridge of a birds breastbone is called a keel
Answer:
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Explanation:
Is there a picture you forgot to post with the question?
In the problem you mention, which I assume comes from the study of finches in the Galapagos, some birds evolved to have different beaks, depending on the food available. Depending on what kind of seeds there are, different beak sizes were selected for, with those with the right fit eventually winning out over the rest on the individual islands.
It pulls towards it until it gets to a certain point and pushes away and so it stays in a steady orbit
