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Unit 7: Quiz #2. Grade:. «grade». Aquatic Science. Subject:. «date». Date:. 1. Which of the following is the geological time that we are currently in:. A. Pleistocene. B. Oligocene. C. Pliocene. D. Holocene. 2. Which of the following demonstrates sexual dimorphism. A. B. D.

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slide1

Unit 7: Quiz #2

Grade:

«grade»

Aquatic Science

Subject:

«date»

Date:

slide2

1

Which of the following is the geological time

that we are currently in:

A

Pleistocene

B

Oligocene

C

Pliocene

D

Holocene

slide3

2

Which of the following demonstrates sexual

dimorphism

A

B

D

C

slide4

3

Most genetic mutations

A

are helpful to a species

B

are harmful to a species

C

have no effect on a species

D

give most species super powers

slide5

4

Homo sapiens have been on the planet for

approximately:

A

5,000 years

B

106,000 years

C

1.8 million years

D

200 million years

slide6

5

True or False: Life began in the Cambrian Period.

True

False

slide7

6

The fossils of Tiktaalik roseae, a fish-like animal that

crawled out of the water, is the transitional species between fish and modern tetrapods. This species

existed in the __________ period.

A

Cambrian

B

Silurian

C

Devonian

D

Permian

slide8

7

Which of the following organisms would likely be

found during the Cambrian Period:

A

a cuddlefish

B

an octopus

C

a brittle star

D

a lamprey

slide9

8

During which time period did modern humans

evolve to become the most dominant species on the

planet:

A

Tertiary

B

Quaternary

C

Jurrassic

D

Cretaceous

slide10

9

During which of the following time periods did 96%

of the current species die off:

A

Permian

B

Devonian

C

Cambrian

D

Quaternary

slide11

10

The end of the __________ Period saw the end

of the dinosaurs, ammonites, and many other

species.

A

Permian

B

Triassic

C

Jurassic

D

Cretaceous

slide12

11

During which time period did active predation begin:

A

Silurian

B

Devonian

C

Ordovician

D

Cambrian

slide13

12

Radiometric dating involves the loss of which of the following from an atom:

A

proton

B

electron

C

neurtron

D

neutrino

slide14

13

The ostracoderms (shell-skinned) were the first

known vertebrates. They developed in which of the following periods:

A

Cambrian

B

Silurian

C

Tertiary

D

Ordovician

slide15

14

During which time period did mammals radiate

back to the water:

A

Jurassic

B

Cretaceous

C

Tertiary

D

Quaternary

slide16

15

After a mass extinction the empty niches will

eventually (1 to 10 million years) be filled by new

species. This is called

A

adaptive radiation

B

homologous structures

C

analogous structures

D

repressive radiation

slide17

16

________ of all species that have every existed are

now extinct

A

15%

B

55%

C

86%

D

99%

slide18

17

The Silurian period is characterized by stability

within the environment & the first appearance of

which of the following:

A

chordates

B

vertebrates

C

gnathostomes

D

craniates

slide19

18

Which of the following time periods involved the

evolution of tetrapods & their invasion of the

terrestrial environment:

A

Devonian

B

Silurian

C

Carboniferous

D

Triassic

slide20

19

The Earth is approximately:

A

3.55 million years old (myo)

B

3.55 billion years old (byo)

C

4.57 million years old (myo)

D

4.57 billion years old (byo)

slide21

20

Mammals & avians (birds) developed during which

of the following periods:

A

Triassic

B

Jurassic

C

Carboniferous

D

Cretaceous

slide22

21

Which of the following is not a type of mammal that developed during the Cretaceous Period:

A

monotreme

B

marsupial

C

precocial

D

placental