Question

The Cambrian explosion at the beginning of the Paleozoic era produced diverse and complex organisms in the blank

Answer 1

The Cambrian explosion at the beginning of the Paleozoic era produced diverse and complex organisms in the **marine environment**. During this period, an unprecedented diversification of life forms occurred, resulting in the appearance of many of the major groups of animals we recognize today, including trilobites, early arthropods, and various mollusks and echinoderms. This dramatic increase in biodiversity is one of the most significant events in the history of life on Earth.