Recent evidence indicates that the first major diversification of multicellular eukaryotes may have coincided in time with the
A) origin of prokaryotes.
B) switch to an oxidizing atmosphere.
C) melting that ended the "snowball Earth" period.
D) origin of multicellular organisms.
E) massive eruptions of deep-sea vents.

Question

Quizplus · Accepted Answer

The first major diversification of multicellular eukaryotes is thought to have coincided with the melting that ended the "snowball Earth" period, as this event significantly altered Earth's environments, making them more hospitable for complex life forms.

Recent Evidence Indicates That the First Major Diversification of Multicellular