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Massachusetts Comprehensive Assessment System



MCAS QUESTION OF THE DAY:

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2011 February Biology, Biology - High School
Download PDF Document Question 43 - Multiple-Choice

Reporting Category: Evolution and Biodiversity
Standard: 5.3 - Explain how evolution through natural selection can result in changes in biodiversity through the increase or decrease of genetic diversity within a population.

 
Odontomachus bauri is a species of ant that has a trap jaw that shuts rapidly. This jaw system evolved from basic mouth parts that all ants have, but the jaw is longer, the joint is a different shape, and the muscles are larger.Which of the following statements best explains why this trap-jaw trait evolved?
 
 
 

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Last Updated: September 21, 2016
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