About 220 million years ago,mammals evolved from ____________________.
Correct Answer:
Verified
Q67: The oxygen necessary to support much of
Q68: The diversification of groups of organisms to
Q69: The first single-celled organisms arose 3.5 _
Q70: Large timescales have played a role in
Q71: The earliest forms of life evolved and
Q73: Following each of Earth's five mass extinctions,the
Q74: The morphological and genetic similarities that reflect
Q75: There is a class of genes that
Q76: After the extinction of the dinosaurs,the stage
Q77: Mammals were able to evolve to fill
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents