Question

During which geological period of evolution did the greatest diversification of life occurred on the earth?

• A. Permian
• B. Jurassic
• C. Cambrian
• D. Ordovician

Answer 1

The correct option is C Cambrian

• The Cambrian period, occurring between approximately 542–488 million years ago, marks the most rapid evolution of new animal phyla and animal diversity in Earth’s history.
• It is believed that most of the animal phyla in existence today had their origins during this time, often referred to as the Cambrian explosion.
• Echinoderms, mollusks, worms, arthropods, and chordates arose during this period.
• One of the most dominant species during the Cambrian period was the trilobite, an arthropod that was among the first animals to exhibit a sense of vision.
• The vast diversification of animal species that appears to have begun during the Cambrian period continued well into the following Ordovician period.

Thus, the correct answer is option C.