Question

Fill in the blanks to accurately describe the evolution of mammals. Then, arrange the events in chronological order to demonstrate the timeline for these events. Jurassic Drag the text blocks below into their Correct order. two ancestor that they share all three Mammals have an extinct, with reptiles Triassic The common ancestor of around the early and gave rise to mammal groups appeared period. This ancestor had relatively small Cretaceous The first true mammas appear during the period, at about the same time as the first dinosaurs. These mammals were quite large amniole The third branch of the mammalen lineage, the arose during the I period. This group gave live birth and had placental mammals Permian Reset hair and mamman the monotremes and marsupials a true uterus

They need to placed in order and have the spaces filled in. Please and thank you.

Answer 1

Mammals have an extinct, amniote ancestor that they share with reptiles

The common ancestor of all three mammal groups appeared around the early Permian period. This ancestor had hair and mammary glands and gave rise to the monotremes and the marsupials

The first true mammals appear during the Triassic period, at about the same time as the first dinosaurs. These mammals were relatively small

The third branch of the mammalian lineage, the placental mammals arose during the Jurassic period. This group gave live birth and had a true uterus