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Biology · Studypool

Discussion Thread: Galapagos Finches

Overview

Darwin’s readings took him to a predictive theory of how species might change with time: what later thinkers have called microevolution.

Darwin’s philosophical worldview then took him beyond his evidence to a conviction that environmental constraints could create whole new structures and organisms. Soon Darwin’s theory of macroevolution replaced the Creator with an environment that could create solely by constraint.

  • According to Chapter 13 section 13.1 of the course text, define microevolution and macroevolution.
  • The Galapagos islands have a great diversity of landscapes – from lush vegetation to nearly barren lava fields yet the Galapagos Finches survive on each island. How can this be explained?
  • Using the varying bills of the Galapagos Finches in figure 13.3 and additional research, explain how microevolution is evidence

    Minimum 150 words. Students must support their assertions with at least 1 scholarly citation in APA format.