Part A

Use what you learned in this unit to describe at least one way in which each of Earth's subsystems was altered during the Precambrian era. Research additional resources as needed.



Answer :

Final answer:

During the Late Precambrian era, Earth experienced significant changes including glaciations, climatic shifts, and evolutionary impacts that set the stage for the Cambrian explosion.


Explanation:

The Late Precambrian period witnessed significant alterations in Earth's subsystems:

  • Geologic Changes: The Earth underwent glaciations covering large parts, leading to the 'Snowball Earth' phenomenon.
  • Climatic Changes: Dramatic shifts occurred with the introduction of oxygen and the formation of a protective ozone layer.
  • Evolutionary Impact: The subsequent melting due to global warming opened up new ecological niches, possibly driving the explosive evolution seen in the Cambrian explosion.

Learn more about Late Precambrian Era here:

https://brainly.com/question/20654662