The Cambrian explosion occurred primarily in the oceans.Which of the following were the first challenges that had to be overcome during the mass colonization of dry land in the Ordovician period?

Question

Quizplus · Accepted Answer

The first challenges that had to be overcome during the mass colonization of dry land in the Ordovician period were related to supporting the body structure without buoyancy in water, movement, and reproduction. These challenges required adaptations such as the development of skeletons, muscles, and respiratory systems that could function in air, as well as specialized appendages for movement on land and mechanisms for protecting and incubating eggs. The other options listed are not relevant to the challenges of colonizing dry land.

The Cambrian Explosion Occurred Primarily in the Oceans