What type of evolution is described in the following scenario:Porcupines in the United States have quills (spines) that are attached to their skins. When they feel threatened, they can tense up their bodies, causing the quills to shoot out. These spiny quills can pierce the skin of attacking animals, causing injury and pain. Although not closely related to the porcupine, hedgehogs that live throughout parts of Europe also have protective spines that they use to defend themselves from attacking animals.

EVOLUTION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What type of evolution is described in the following scenario:Porcupines in the United States have quills (spines) that are attached to their skins. When they feel threatened, they can tense up their bodies, causing the quills to “shoot out.” These spiny quills can pierce the skin of attacking animals, causing injury and pain. Although not closely related to the porcupine, hedgehogs that live throughout parts of Europe also have protective spines that they use to defend themselves from attacking animals.

A	Coevolution
B	Divergent Evolution
C	Convergent Evolution
D	None of the above

Explanation:

Detailed explanation-1: -A prickly personality: Porcupine quills are a wonder of defensive evolution.

Detailed explanation-2: -The four types of evolution are divergent evolution, convergent evolution, parallel evolution, and coevolution.

Detailed explanation-3: -Porcupines in the United States have quills (spines) that are attached to their skins. When they feel threatened, they can tense up their bodies causing the quills to “shoot out". These spiny quills can pierce the skin of attacking animals, causing injury and pain.

Detailed explanation-4: -Examples of convergent evolution include the relationship between bat and insect wings, shark and dolphin bodies, and vertebrate and cephalopod eyes. Analogous structures arise from convergent evolution, but homologous structures do not.

Detailed explanation-5: -Strictly speaking, convergent evolution occurs when descendants resemble each other more than their ancestors did with respect to some feature. Parallel evolution implies that two or more lineages have changed in similar ways, so that the evolved descendants are as similar to each other as their ancestors were.

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LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION