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Question 1 1 points Save Which era ended in the greatest mass extinction event i

ID: 17267 • Letter: Q

Question

Question 1 1 points Save

Which era ended in the greatest mass extinction event in world history?


Paleozoic

Mesozoic

Precambrian

none of the above
Question 2 1 points Save

The ______ period encompasses the time from 505 to 440 million years ago.


Cambrian

Ordovician

Devonian

none of the above
Question 3 1 points Save

Cooksonia is a typical early _____ plant.


non-vascular

vascular

algae

none of the above
Question 4 1 points Save

Which of the following came about in the Devonian period?


amphibians

terrestrial vertebrates

forests

all of the above
Question 5 1 points Save

Some anatomical similarities suggest that _____ and sphenophytes may have shared a common ancestor.


insects

amphibians

algae

ferns
Question 6 1 points Save

Where did the marine life most affected by the extinction live?


the Arctic circle

rivers and streams

warm tropical waters

none of the above
Question 7 1 points Save

The Carboniferous forests became massive amounts of


coal.

pollution.

diamonds.

none of the above
Question 8 1 points Save

There appears to have been no mass extinction associated with the _____ period.


Cambrian

Carboniferous

Devonian

Silurian
Question 9 1 points Save

The first conifers had small


needles.

leaves.

trunks.

none of the above
Question 10 1 points Save

The Permian period ended in the greatest extinction of the ______ Eon.


Paleozoic

Precambrian

Phanerozoic

Devonian

Explanation / Answer

c
d
b
d
b

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