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MassachusettsBiologyQuick questions
Module 5: Evolution and biodiversity
Quick questions on Evidence for evolution - MA High School Biology MCAS Module 5
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is embryology?Show answer
Related species often look very similar in their early development (as embryos), even when the adults look different. These shared early stages point to common ancestry.
What is molecular biology?Show answer
This is considered the strongest modern evidence. All life uses DNA with the same code and shares many of the same proteins. The MCAS uses this with data: the fewer differences in the DNA or a protein between two species, the more recently they shared a common ancestor.
What is q1?Show answer
Define a homologous structure and state what it suggests. [2]
What is q2?Show answer
Explain how molecular biology shows which species are most closely related. [2]
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