OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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People selectively breeding hamsters.
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Insect populations developing resistance to certain pesticides.
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Bacteria becoming resistant to antibiotics.
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Male birds of certain species developing colorful feathers to attract female mates.
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Detailed explanation-1: -The correct answer is: Bacterial populations in hospitals acquire resistance to antibiotics used to treat illness.
Detailed explanation-2: -For example, evolving long necks has enabled giraffes to feed on leaves that others can’t reach, giving them a competitive advantage. Thanks to a better food source, those with longer necks were able to survive to reproduce and so pass on the characteristic to the succeeding generation.
Detailed explanation-3: -Natural selection on polygenic traits can affect the distributions of phenotypes in three ways: directional selection, stabilizing selection, or disruptive selection.
Detailed explanation-4: -Deer Mouse. Warrior Ants. Peacocks. Galapagos Finches. Pesticide-resistant Insects. Rat Snake. All rat snakes have similar diets, are excellent climbers and kill by constriction. Peppered Moth. Many times a species is forced to make changes as a direct result of human progress. 10 Examples of Natural Selection. « previous. More items