QUESTION 1 The largest mass extinction occurred At the end o

QUESTION 1

The largest mass extinction occurred:

At the end of the Ordovician.

At the end of the Permian.

At the end of the Cretaceous.

At the end of the Triassic.

0.5 points   

QUESTION 2

How old are the earliest amniotes?

Late Devonian

Early Permian

Middle Carboniferous

Late Silurian

0.5 points   

QUESTION 3

Synapsids include:

Amphibians.

Birds.

Turtles.

Mammals.

0.5 points   

QUESTION 4

The large body size attained by some insects and myriapods in the late Paleozoic is thought to have been facilitated by:

Increased oxygen levels.

The emergence of dense forests.

Changes in ocean chemistry.

Global warming.

0.5 points   

QUESTION 5

How old is the earliest evidence of tetrapods?

Early Carboniferous

Late Devonian

Middle Ordovician

Late Silurian

0.5 points   

QUESTION 6

Possible causes of the Permian extinction that have been proposed (and that have at least some support) include:

Plume volcanic eruptions.

Bolide impacts.

Disease.

Ice ages.

0.5 points   

QUESTION 7

Which of the following is not one of the five biggest mass extinctions during the Phanerozoic?

Late Devonian

Late Pleistocene

End of the Triassic

End of the Ordovician

0.5 points   

QUESTION 8

Sauropsids do not include:

Birds

Lizards and snakes

Turtles

Mammals

0.5 points   

QUESTION 9

By the end of the Paleozoic, continental masses had coalesced into a single supercontinent called:

Paleo-Tethys

Panthalassa

Pangaea

Gondwana

0.5 points   

QUESTION 10

__________ is not one of the three faunas of the Phanerozoic as identified by Sepkoski.

Modern fauna

Mesozoic fauna

Paleozoic fauna

Cambrian fauna

		At the end of the Ordovician.
		At the end of the Permian.
		At the end of the Cretaceous.
		At the end of the Triassic.

Solution

1). At the end of the permian.

2). Early permian.

3). Mammals

4). Mammals. All birds, reptiles, turtle are included in this group but mammals are included in synalsida.