Question 1

Single-celled animals known as ____________________ were plankton that diversified tremendously during the Mesozoic.

Accepted Answer

The answer of Single-celled animals known as ____________________ were plankton...

Question 2

What are gymnosperms,and why was their evolution important?

Accepted Answer

Flowerless seed plan

Question 3

The feature that distinguishes the two subclasses of bony fish is their:

Accepted Answer

A) gill structure. 
B) skeletal structure. 
C) fin structure. 
D) teeth structure. 
E) scale structure. 
A) gill structure. 
B) skeletal structure. 
C) fin structure. 
D) teeth structure. 
E) scale structure.

Question 4

The evolutionary trend in mammal size during the Pleistocene could have been in response to:

Accepted Answer

A) global warming when there was more food available. 
B) cooler temperatures because large animals retain heat more efficiently. 
C) protection from predation of other organisms. 
D) increased predatory ability. 
E) decreased metabolic requirements. 
A) global warming when there was more food available. 
B) cooler temperatures because large animals retain heat more efficiently. 
C) protection from predation of other organisms. 
D) increased predatory ability. 
E) decreased metabolic requirements.

Question 5

What are fossils?

Accepted Answer

Fossils are the rema

Question 6

Many of the large dinosaurs,such as Tyrannosaurus,are known as the ____________________ dinosaurs.

Accepted Answer

The answer of Many of the large dinosaurs,such as Tyrannosaurus,are...

Question 7

Describe bird evolution as known from the fossil record.

Accepted Answer

The ancestor of birds was probably a sma

Question 8

Mass extinctions at the end of the Ordovician occurred because of:

Accepted Answer

A) dramatic changes in oceans related to glaciation. 
B) dramatic chemical changes in seawater related to meteorite impact. 
C) increased solar radiation. 
D) decreased solar radiation. 
E) dramatic changes in oceans related to glaciation AND increased solar radiation. 
A) dramatic changes in oceans related to glaciation. 
B) dramatic chemical changes in seawater related to meteorite impact. 
C) increased solar radiation. 
D) decreased solar radiation. 
E) dramatic changes in oceans related to glaciation AND increased solar radiation.

Question 9

Seedless vascular plants lived in low wet habitats because they:

Accepted Answer

A) need water to reproduce. 
B) do not have a means to transport water through their structure. 
C) had no protection from desiccation. 
D) were a food source for amphibians. 
E) all of the these. 
A) need water to reproduce. 
B) do not have a means to transport water through their structure. 
C) had no protection from desiccation. 
D) were a food source for amphibians. 
E) all of the these.

Question 10

Mammals that produce an unprotected embryo that undergoes further development in a pouch are called ____________________ mammals.

Accepted Answer

The answer of Mammals that produce an unprotected embryo that...

Question 11

A.africanus appeared about 3.0 million years ago and is very similar to A.afarensis except for a few minor details.

Accepted Answer

A) True 
 B)False

Question 12

What were the factors that made it difficult for animals to adapt to land?

Accepted Answer

On land,animals had to worry a

Question 13

What do the Ediacaran fauna represent,why are they important,and what is their relationship to later life forms?

Accepted Answer

The Ediacaran fauna are the first multic

Question 14

The ____________________ were characterized by a thickened dome-shaped skull.

Accepted Answer

The answer of The ____________________ were characterized by a thickened...

Question 15

____________________ was a robust creature with a developed social structure.

Accepted Answer

The answer of ____________________ was a robust creature with a...

Question 16

What is the evidence that dinosaurs were endotherms? What is the evidence that they were ectotherms? What is the conclusion?

Accepted Answer

Bones of endotherms typically have numer

Question 17

The first Mesozoic mammals were very distinctive from their ancestral reptiles.

Accepted Answer

A) True 
 B)False

Question 18

Briefly state the problems that animals faced in their adaptation to land.

Accepted Answer

Because animals evolved in a moist envir

Question 19

The Precambrian-Cambrian boundary represents the first appearance of:

Accepted Answer

A) vertebrates. 
B) amphibians. 
C) reptiles. 
D) animals with skeletons. 
E) animals with soft bodies. 
A) vertebrates. 
B) amphibians. 
C) reptiles. 
D) animals with skeletons. 
E) animals with soft bodies.

Question 20

How distinct were Mesozoic mammals from their reptile neighbors?

Accepted Answer

Most Mesozoic mammals had both mammalian

Single-celled animals known as ____________________ were plankton that diversified tremendously during the Mesozoic.

What are gymnosperms,and why was their evolution important?

The feature that distinguishes the two subclasses of bony fish is their:

The evolutionary trend in mammal size during the Pleistocene could have been in response to:

What are fossils?

Many of the large dinosaurs,such as Tyrannosaurus,are known as the ____________________ dinosaurs.

Describe bird evolution as known from the fossil record.

Mass extinctions at the end of the Ordovician occurred because of:

Seedless vascular plants lived in low wet habitats because they:

Mammals that produce an unprotected embryo that undergoes further development in a pouch are called ____________________ mammals.

A.africanus appeared about 3.0 million years ago and is very similar to A.afarensis except for a few minor details.

What were the factors that made it difficult for animals to adapt to land?

What do the Ediacaran fauna represent,why are they important,and what is their relationship to later life forms?

The ____________________ were characterized by a thickened dome-shaped skull.

____________________ was a robust creature with a developed social structure.

What is the evidence that dinosaurs were endotherms? What is the evidence that they were ectotherms? What is the conclusion?

The first Mesozoic mammals were very distinctive from their ancestral reptiles.

Briefly state the problems that animals faced in their adaptation to land.

The Precambrian-Cambrian boundary represents the first appearance of:

How distinct were Mesozoic mammals from their reptile neighbors?

Understanding Earth: A Dynamic and Evolving Planet

Plate Tectonics: A Unifying Theory

Minerals: The Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Filters

Exam 18: Life History

Single-celled animals known as ____________________ were plankton that diversified tremendously during the Mesozoic.

What are gymnosperms,and why was their evolution important?

The feature that distinguishes the two subclasses of bony fish is their:

The evolutionary trend in mammal size during the Pleistocene could have been in response to:

What are fossils?

Many of the large dinosaurs,such as Tyrannosaurus,are known as the ____________________ dinosaurs.

Describe bird evolution as known from the fossil record.

Mass extinctions at the end of the Ordovician occurred because of:

Seedless vascular plants lived in low wet habitats because they:

Mammals that produce an unprotected embryo that undergoes further development in a pouch are called ____________________ mammals.

A.africanus appeared about 3.0 million years ago and is very similar to A.afarensis except for a few minor details.

What were the factors that made it difficult for animals to adapt to land?

What do the Ediacaran fauna represent,why are they important,and what is their relationship to later life forms?

The ____________________ were characterized by a thickened dome-shaped skull.

____________________ was a robust creature with a developed social structure.

What is the evidence that dinosaurs were endotherms? What is the evidence that they were ectotherms? What is the conclusion?

The first Mesozoic mammals were very distinctive from their ancestral reptiles.

Briefly state the problems that animals faced in their adaptation to land.

The Precambrian-Cambrian boundary represents the first appearance of:

How distinct were Mesozoic mammals from their reptile neighbors?

Understanding Earth: A Dynamic and Evolving Planet

Plate Tectonics: A Unifying Theory

Minerals: The Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

The Work of Wind and Deserts

Oceans, Shorelines, and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Filters