Respuesta :
Answer:
The first birds and flowering plants during this era…….. Mesozoic
Mammlals including humans…… Cenzoic
At the beginning of this era……. Palezoic
Explanation:
The first birds and flowering plants appeared during the Mesozoic. Mammals emerged during Cenozoic. At the beginning of the Paleozoic, animals lived only in water and by the end, some early dinosaurs emerged.
Whta are geological eras?
The geological eras are long periods of geological time in the Earth's history marked by different events (e.g. species extinction).
The geological eras include the Precambrian period, Paleozoic era, Mesozoic era, and Cenozoic era.
The Precambrian, extended from the Earth's planet formed to the Cambrian Period (540 million years ago).
The last 540 million years of Earth's history encompass the Paleozoic, Mesozoic, and Cenozoic eras.
In conclusion, the first birds and flowering plants appeared during the Mesozoic. Mammals emerged during Cenozoic. At the beginning of the Paleozoic, animals lived only in water and by the end, some early dinosaurs emerged.
Learn more about geological eras here:
https://brainly.com/question/1288853