Question 1

Unlike the Paleozoic burrowing animals, which were soft-bodied, Mesozoic burrowing animals had hard-shells.

Accepted Answer

A) True 
 B)False  True

Question 2

Dinosaurs are classified as reptiles, but several characteristics set them apart from other reptiles. List four characteristics that made dinosaurs unique from other reptiles.

Accepted Answer

1. Dinosaurs had teeth in individual sockets.
2. Dinosaurs had a reduced lower leg bone (fibula).
3. Dinosaurs had a pelvis anchored to the vertebral column.
4. There was a ball-like head on the upper leg bone in dinosaurs.
5. Bones in a dinosaur's palate were elongated.
6. Dinosaurs had a fully upright posture.

Question 3

The corals that proliferated in the Mesozoic oceans were scleractinians and were different than those of the Paleozoic seas.

Accepted Answer

A) True 
 B)False  True

Question 4

What evidence supports the hypothesis that a meteorite impact might have caused the extinction at the end of the Mesozoic?

Accepted Answer

An iridium anomaly at the Cretaceous-Pal

Question 5

Animals that move on four limbs are ____________________, while animals that move on two limbs are ____________________.

Accepted Answer

quadrupeda

Question 6

Dinosaurs were divided into two orders based on whether they were ectothermic or endothermic.

Accepted Answer

A) True 
 B)False

Question 7

The two subclasses of bony fish are ____ and ____.

Accepted Answer

A)  ray-finned; spiral-finned 
B)  ray finned; lobate-finned 
C)  ray-finned; lobe-finned 
D)  lobate-finned; radial-finned 
E)  spiral-finned; radial-finned 
A)  ray-finned; spiral-finned 
B)  ray finned; lobate-finned 
C)  ray-finned; lobe-finned 
D)  lobate-finned; radial-finned 
E)  spiral-finned; radial-finned

Question 8

Vascular plants having flowers and seeds are called ____.

Accepted Answer

A)  ostracoderms 
B)  spores 
C)  angiosperms 
D)  gymnosperms 
E)  therapsids 
A)  ostracoderms 
B)  spores 
C)  angiosperms 
D)  gymnosperms 
E)  therapsids

Question 9

Humans belong to which group of mammals?

Accepted Answer

A)  monotremes 
B)  mauropods 
C)  marsupials 
D)  amniotes 
E)  placental 
A)  monotremes 
B)  mauropods 
C)  marsupials 
D)  amniotes 
E)  placental

Question 10

Fossils of Archaeopteryx are important because they ____.

Accepted Answer

A)  prove that dinosaurs could fly 
B)  indicate birds may have evolved from theropod dinosaurs 
C)  indicate theropod dinosaurs may have evolved from birds 
D)  indicate some dinosaurs were warm-blooded 
E)  show that small dinosaurs had feathers 
A)  prove that dinosaurs could fly 
B)  indicate birds may have evolved from theropod dinosaurs 
C)  indicate theropod dinosaurs may have evolved from birds 
D)  indicate some dinosaurs were warm-blooded 
E)  show that small dinosaurs had feathers

Question 11

Which feature is one of the pieces of evidence that indicates that the boundary between the Cretaceous Period and the Tertiary was marked by the impact of a large meteorite (bolide)?

Accepted Answer

A)  evaporites 
B)  large scale unconformities 
C)  metamorphosed limestones 
D)  sequence stratigraphy 
E)  iridium anomaly 
A)  evaporites 
B)  large scale unconformities 
C)  metamorphosed limestones 
D)  sequence stratigraphy 
E)  iridium anomaly

Question 12

Paleozoic and Mesozoic marine invertebrate faunas differ primarily because ____.

Accepted Answer

A)  mammals had not yet evolved in the Paleozoic 
B)  birds had not yet evolved in the Paleozoic 
C)  most Paleozoic faunas were nektonic 
D)  Mesozoic fauna with hard and soft parts burrowed in the sediment 
E)  more Mesozoic fauna were nektonic 
A)  mammals had not yet evolved in the Paleozoic 
B)  birds had not yet evolved in the Paleozoic 
C)  most Paleozoic faunas were nektonic 
D)  Mesozoic fauna with hard and soft parts burrowed in the sediment 
E)  more Mesozoic fauna were nektonic

Question 13

The earliest humans lived during the time of the dinosaurs.

Accepted Answer

A) True 
 B)False

Question 14

Why do some geologists believe a meteorite impact was not the sole cause of the extinction event at the end of the Mesozoic?

Accepted Answer

A)  Iridium is not always found at the boundary between Cretaceous and Paleogene rocks. 
B)  Meteorite impacts cause local extinctions, not global extinctions. 
C)  The meteorite hit at the end of the Jurassic, while extinctions occurred throughout the Cretaceous. 
D)  The location of an impact crater has not been discovered, and likely never will be. 
E)  Terrestrial and marine extinctions have not been shown to occur at the same time. 
A)  Iridium is not always found at the boundary between Cretaceous and Paleogene rocks. 
B)  Meteorite impacts cause local extinctions, not global extinctions. 
C)  The meteorite hit at the end of the Jurassic, while extinctions occurred throughout the Cretaceous. 
D)  The location of an impact crater has not been discovered, and likely never will be. 
E)  Terrestrial and marine extinctions have not been shown to occur at the same time.

Question 15

The Saurischian dinosaurs are known as the bird-hipped dinosaurs.

Accepted Answer

A) True 
 B)False

Question 16

A significant change in land-plant communities occurred with the evolution of angiosperms in the Cretaceous.

Accepted Answer

A) True 
 B)False

Question 17

Which type of coral was present in Mesozoic reef communities?

Accepted Answer

A)  nautiloids 
B)  rugose 
C)  scleractinian 
D)  tabulate 
E)  polyphorma 
A)  nautiloids 
B)  rugose 
C)  scleractinian 
D)  tabulate 
E)  polyphorma

Question 18

Gymnosperms became extinct at the end of the Mesozoic.

Accepted Answer

A) True 
 B)False

Question 19

Reptiles, birds, and mammals are descended from one common ancestor.

Accepted Answer

A) True 
 B)False

Question 20

Rudist bivalves were an important component of the Mesozoic reef community.

Accepted Answer

A) True 
 B)False

Unlike the Paleozoic burrowing animals, which were soft-bodied, Mesozoic burrowing animals had hard-shells.

Dinosaurs are classified as reptiles, but several characteristics set them apart from other reptiles. List four characteristics that made dinosaurs unique from other reptiles.

The corals that proliferated in the Mesozoic oceans were scleractinians and were different than those of the Paleozoic seas.

What evidence supports the hypothesis that a meteorite impact might have caused the extinction at the end of the Mesozoic?

Animals that move on four limbs are , while animals that move on two limbs are .

Dinosaurs were divided into two orders based on whether they were ectothermic or endothermic.

The two subclasses of bony fish are and .

Vascular plants having flowers and seeds are called ____.

Humans belong to which group of mammals?

Fossils of Archaeopteryx are important because they ____.

Which feature is one of the pieces of evidence that indicates that the boundary between the Cretaceous Period and the Tertiary was marked by the impact of a large meteorite (bolide)?

Paleozoic and Mesozoic marine invertebrate faunas differ primarily because ____.

The earliest humans lived during the time of the dinosaurs.

Why do some geologists believe a meteorite impact was not the sole cause of the extinction event at the end of the Mesozoic?

The Saurischian dinosaurs are known as the bird-hipped dinosaurs.

A significant change in land-plant communities occurred with the evolution of angiosperms in the Cretaceous.

Which type of coral was present in Mesozoic reef communities?

Gymnosperms became extinct at the end of the Mesozoic.

Reptiles, birds, and mammals are descended from one common ancestor.

Rudist bivalves were an important component of the Mesozoic reef community.

The Dynamic and Evolving Earth

Minerals and Rocks

Plate Tectonics: a Unifying Theory

Geologic Time Concepts and Principles

Rocks Fossils and Time Making Sense of the Geologic Record

Sedimentary Rocks the Archives of Earth History

Evolution the Theory and Its Supporting Evidence

Precambrian Earth and Life History the Hadean and the Archean Eon

Precambrian Earth and Life History the Proterozoic Eon

Early Paleozoic Earth History

Late Paleozoic Earth History

Paleozoic Life History Invertebrates

Paleozoic Life History Vertebrates and Plants

Mesozoic Earth History

Cenozoic Earth History the Paleogene and Neogene Periods

Cenozoic Earth History the Quaternary Period

Life of the Cenozoic Era

Primate and Human Evolution

Filters

Exam 15: Life of the Mesozoic Era

Unlike the Paleozoic burrowing animals, which were soft-bodied, Mesozoic burrowing animals had hard-shells.

Dinosaurs are classified as reptiles, but several characteristics set them apart from other reptiles. List four characteristics that made dinosaurs unique from other reptiles.

The corals that proliferated in the Mesozoic oceans were scleractinians and were different than those of the Paleozoic seas.

What evidence supports the hypothesis that a meteorite impact might have caused the extinction at the end of the Mesozoic?

Animals that move on four limbs are ____________________, while animals that move on two limbs are ____________________.

Dinosaurs were divided into two orders based on whether they were ectothermic or endothermic.

The two subclasses of bony fish are ____ and ____.

Vascular plants having flowers and seeds are called ____.

Humans belong to which group of mammals?

Fossils of Archaeopteryx are important because they ____.

Which feature is one of the pieces of evidence that indicates that the boundary between the Cretaceous Period and the Tertiary was marked by the impact of a large meteorite (bolide)?

Paleozoic and Mesozoic marine invertebrate faunas differ primarily because ____.

The earliest humans lived during the time of the dinosaurs.

Why do some geologists believe a meteorite impact was not the sole cause of the extinction event at the end of the Mesozoic?

The Saurischian dinosaurs are known as the bird-hipped dinosaurs.

A significant change in land-plant communities occurred with the evolution of angiosperms in the Cretaceous.

Which type of coral was present in Mesozoic reef communities?

Gymnosperms became extinct at the end of the Mesozoic.

Reptiles, birds, and mammals are descended from one common ancestor.

Rudist bivalves were an important component of the Mesozoic reef community.

The Dynamic and Evolving Earth

Minerals and Rocks

Plate Tectonics: a Unifying Theory

Geologic Time Concepts and Principles

Rocks Fossils and Time Making Sense of the Geologic Record

Sedimentary Rocks the Archives of Earth History

Evolution the Theory and Its Supporting Evidence

Precambrian Earth and Life History the Hadean and the Archean Eon

Precambrian Earth and Life History the Proterozoic Eon

Early Paleozoic Earth History

Late Paleozoic Earth History

Paleozoic Life History Invertebrates

Paleozoic Life History Vertebrates and Plants

Mesozoic Earth History

Cenozoic Earth History the Paleogene and Neogene Periods

Cenozoic Earth History the Quaternary Period

Life of the Cenozoic Era

Primate and Human Evolution

Filters

Animals that move on four limbs are , while animals that move on two limbs are .

The two subclasses of bony fish are and .