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Bio 142 Test 2

Total questions: 44

Worksheet time: 44mins

Name
Class
Date
1.

The earth formed ____ years ago.

a)

4.6 billion

b)

3.8 billion

c)

2.8 billion

d)

8.4 billion

2.

Life began around _____ years ago.

a)

4.6 billion

b)

3.8 billion

c)

2.5 billion

d)

3.4 billion

3.

The first cyanobacteria and photosynthetic cells appeared in the

a)

Archaean eon

b)

Proterozoic eon

c)

Hadean eon

d)

Cenozoic era

4.

The precambrian includes the

a)

Hadean eon

b)

Archean eon

c)

Phanerozoic eon

d)

Proterozoic eon

e)

Paleozoic era

5.

What are the Eons of the precambrian in order from oldest to newest?

a)

Archean, Hadean, Proterzoic

b)

Proterzoic, Archean, Hadean

c)

Hadean, Archean, Proterozoic

6.

The Phanerozoic eon spans the interval between ___ and ____..

a)

541 million years ago; 250 million years ago

b)

500 million years ago; 250 million years ago

c)

541 million years ago; the present

d)

600 million years ago; the present

7.

The Phanerzoic eon is divided into three eras:

a)

Mesozoic

b)

Achaean

c)

Paleozoic

d)

Hadean

e)

Cenozoic

8.

Land animals first appear in the ___.

a)

Mesozoic era

b)

Paleozoic era

c)

Cenozoic era

9.

Bryozoans appeared in the ______.

a)

Ordovician period

b)

Cambrian period

c)

Permian period

d)

Carboniferous period

10.

The first land plants appeared in the ______.

a)

Cambrian period

b)

Carboniferous period

c)

Ordovician period

d)

Devonian period

11.

Arthropods, mollusks, and vertebrae first appear in the ________.

a)

Ordovician period

b)

Permian period

c)

Carboniferous period

d)

Cambrian period

12.

The first Porifera and Cnidaria appeared in the _____.

a)

Proterozoic eon

b)

Cambrian period

c)

Silurian period

d)

Phanerozoic eon

13.

First bony fish appear in the _______.

a)

Silurian period

b)

Devonian period

c)

Ordovician period

d)

Cambrian period

14.

The first oceans appeared in the

a)

Paleozoic eon

b)

Precambrian eon

c)

Hadean eon

d)

Phanerozoic eon

15.

Amniotes appeared first in the ______.

a)

Pennsylvanian epoch

b)

Mississippi epoch

16.

The first tree-sized, seeded and plants with leaves appeared in the _______.

a)

Carboniferous period

b)

Permian period

c)

Silurian period

d)

Devonian period

17.

What triggered the Cambrian explosion?

a)

Higher oxygen levels

b)

Lower oxygen levels made the ocean anoxic killing off many aquatic animals

c)

Evolution of predation

d)

New niches cause more new niches

e)

Mutations increased the number of Hox genes in animals which allowed them to get bigger/more complex

18.

The first tetrapods appeared in the ______.

a)

Permian period

b)

carboniferous period

c)

Devonian period

d)

Silurian period

19.

First insects appeared in the _______.

a)

Devonian period

b)

Permian period

c)

Carboniferous period

d)

Silurian period

20.

First mammals appeared in the _____.

a)

Jurassic period

b)

Cretaceous period

c)

Triassic period

d)

Permian Period

21.

First dinosaur appeared in the ______.

a)

Jurassic period

b)

Cretaceous period

c)

Triassic period

d)

Permian period

22.

First bird-like reptile appeared in the ______.

a)

Permian period

b)

Triassic period

c)

Cretaceous period

d)

Jurassic period

23.

First Placental mammals appeared in the _______.

a)

Jurassic period

b)

Triassic period

c)

Cretaceous period

d)

Permian period

24.

The first bee/ant appeared in the ______.

a)

Cretaceous period

b)

Jurassic period

c)

Triassic period

d)

Quaternary period

25.

First angiosperm (flowering plants) appeared in the _____.

a)

Jurassic period

b)

Triassic period

c)

Cretaceous period

d)

Neogene period

26.

The first horses, rabbits, and primates appeared in the ________.

a)

Pilocene epoch

b)

Quaternary period

c)

Neogene period

d)

Paleogene period

27.

The first fully aquatic whales appear in the _____.

a)

Eocene epoch

b)

Miocene epoch

c)

Oligocene epoch

d)

Pilocene epoch

28.

The first apes appeared in the _______.

a)

Holocene epoch

b)

Oligocene epoch

c)

Pilocene epoch

d)

Eocene epoch

29.

The earliest hominins appeared in the ________.

a)

Miocene

b)

Oligocene

c)

Eocene

d)

Pilocene

30.

Homo sapiens and chimpanzees first appeared in the ________.

a)

Pleistocene epoch

b)

Eocene epoch

c)

Oligocene epoch

d)

Holocene epoch

31.

The Ordovician -- Silurian mass extinction occurred __________.

a)

359 million years ago

b)

252 million years ago

c)

201 million years ago

d)

443 million years ago

32.

The late Devonian mass extinction occurred _______ ago.

a)

443 million years

b)

252 million years

c)

359 million years

d)

65 million years

33.

The permian -- triassic mass extinction occurred ___ ago.

a)

443 million years

b)

252 million years

c)

65 million years

d)

359 million years

34.

The end triassic mass extinction occurred ____.

a)

252 million years ago

b)

65 million years ago

c)

201 million years ago

d)

443 million years ago

35.

The end cretaceous mass extinction occurred ____.

a)

65 million years ago

b)

252 million years ago

c)

443 million years ago

d)

201 million years ago

36.

_____ of species went extinct over 10,000 years in the end permian mass extinction.

a)

96%

b)

82%

c)

60%

d)

30%

37.

_____ of families went extinct in the end permian mass extinction.

a)

18%

b)

25%

c)

50%

d)

75%

38.

Oceans became ___ releasing methane into the air during the end permian mass extinction.

a)

myelinated

b)

oxygenated

c)

hypoxic

d)

anoxic

39.

____ of species went extinct in the end cretaceous mass extinction.

a)

63%-99%

b)

18-20%

c)

34-70%

d)

60-80%

40.

What is the evidence supporting the impact hypothesis in the end cretaceous mass extinction.

a)

Very low iridium levels in the soil dating 65 million years ago

b)

shocked quartz in the soil dating 65 million years ago

c)

Unusually high iridium levels in the soil dating 65 million years ago

d)

Microtektites in the soil dating 65 million years ago

e)

180km crater dating to 65 million years ago found in Yucatan

41.

What were the predicted effects of the impact of the asteroid during the end cretaceous mass extinction.

a)

Excess methane in the air due to fumes coming off the asteroid

b)

immense tsunamis

c)

Dramatic drop in the sea level

d)

Worldwide wildfires causes soot/ash to block the sun

e)

Release of massive amounts of sulfate gas/sulfuric acid into the atmosphere

42.

Mass extinctions are followed by intense diversification and adaptive radiation.

a)

True

b)

False

43.

The rapid production, from a single lineage, of many descendent species is called _______.

a)

Morphological innovation

b)

Speciation

c)

Adaptive radiation

d)

Ecological opportunity

44.

The hallmarks of adaptive radiation are:

a)

They are a monophyletic group

b)

They are a paraphyletic group

c)

The speciated rapidly

d)

they diversified ecologically

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