Mammal Evolution

True or false? Lions, mice, gorillas, and even humans all came from TWO species of mammals millions of years ago.

• True

• False

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-3

Early ancestors of both mammals and reptiles were the ___________ which were reptile-like that evolved from amphibians.

• Amniotes

• Symbiotes

• Carniotes

• Zygotes

What was the big difference between amphibians and the amniotes?

• Amphibians could fertilize and lay their eggs on water.

• Amphibians could not fertilize their eggs but could lay eggs in water.

• Amniotes could fertilize and lay their eggs on water.

• Amniotes could not fertilize their eggs but could lay eggs in water.

Which were the TWO main branches of amniotes that became ancestors of mammals and reptiles?

• Synapsids and Diapsids

• Synapsids and Pyrids

• Synapdsids and Sauropsids

• Synapsids and Sirachids

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NGSS.MS-LS4-2

Which branch of amniotes were ancestors to ALL mammals?

• Synapsids

• Pyrids

• Sauropsids

• Sirachids

Which branch of amniotes were ancestors to early reptiles?

• Synapsids

• Pyrids

• Sauropsids

• Sirachids

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

How long ago did the first true mammals begin to appear?

• 210 million

• 215 million

• 220 million

• 225 million

Tags

NGSS.MS-LS4-1

What is the first known mammal that lived in China around 193 millions years ago and is a small rodent-like creature that laid eggs?

• Chupapi Munyanyo

• Sinoconodon rigneyi

• Morganucodon watsoni

• Wamsbestchool Gottem

Tags

NGSS.MS-LS4-1

What is the first known mammal that laid eggs and fed its young with milk and most likely had hair?

• Chupapi Munyanyo

• Sinoconodon rigneyi

• Morganucodon watsoni

• Wamsbestchool Gottem

Tags

NGSS.MS-LS4-2

Which mammal group has the biggest number of species?

• Rodentia

• Chiroptera

• Soricomorpha

• Equus ferus caballus