EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They both are too dumb to fly
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They both can fly but choose not to
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Ostriches and penguins occupy niches in their ecosystems that dont require flight
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None of the above
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Detailed explanation-1: -Ostriches, emus, cassowaries, rheas, and kiwis can’t fly. Unlike most birds, their flat breastbones lack the keel that anchors the strong pectoral muscles required for flight.
Detailed explanation-2: -survival of the fittest, term made famous in the fifth edition (published in 1869) of On the Origin of Species by British naturalist Charles Darwin, which suggested that organisms best adjusted to their environment are the most successful in surviving and reproducing.
Detailed explanation-3: -The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
Detailed explanation-4: -The food available on the different islands varied and the finches had to evolve beaks which could take advantage of the food supplies available to them. These birds, although nearly identical in all other ways to mainland finches, evolved different beaks. Their beaks adapted to the type of food that they ate.