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Ch. 1 - Biology: The Study of Life
All textbooksFreeman 8th EditionCh. 1 - Biology: The Study of LifeProblem 4
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Chapter 1, Problem 4

Could both the food competition hypothesis and the sexual competition hypothesis explain why giraffes have long necks? Why or why not?

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Hello everyone here we have a question asking what could have attributed to the beak size and shape variations among finches observed by Darwin on the Galapagos island. Here we have the choice is a the difference of made preference. That is incorrect. Be the difference in food sources? That is correct. For example, birds that eat grub have been extended beaks so that they can poke holes into the ground and birds with blunt beats specialized in cracking seeds and nuts. And birds with thin beaks might from trees so that they can get into the nooks and crannies of trees. See the difference in habitat. This is incorrect. The the difference in climate. This is incorrect. So our answer here is B the difference in food source. Thank you for watching. Bye.
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