Question 1

Match between columns
                        Premises: The single supercontinent Pangea is present
The dinosaurs became extinct
The Cambrian Explosion has left fossils of many soft-bodied animals
First cells to contain chloroplasts and mitochondria appeared.
Atmosphere is believed to be like ours today

Accepted Answer

The Answer of 1.9 billion years ago and 245 million is...

Question 2

What term is used to indicate a relatively new characteristic, in an evolutionary sense?

Accepted Answer

A) homologous trait 
B) analogous trait 
C) cladistic trait 
D) ancestral trait 
E) derived trait 
A) homologous trait 
B) analogous trait 
C) cladistic trait 
D) ancestral trait 
E) derived trait E

Question 3

Stanley Miller conducted a famous experiment in the 1950s. This experiment

Accepted Answer

A) tried to determine how evolution occurs. 
B) mimicked the early Earth's atmosphere as we know it today. 
C) showed that simple organic molecules came from outer space. 
D) used sunlight as an energy source. 
E) showed that some organic molecules could be formed from non-organic starting materials. 
A) tried to determine how evolution occurs. 
B) mimicked the early Earth's atmosphere as we know it today. 
C) showed that simple organic molecules came from outer space. 
D) used sunlight as an energy source. 
E) showed that some organic molecules could be formed from non-organic starting materials. E

Question 4

Match between columns
                        Premises: Oxygen-producing photosynthesizers
First animals with calcium skeletons and shells
First land forms
First anaerobic heterotrophs
Eukaryotes
First multicellular organisms

Accepted Answer

The Answer of 8 billion years ago and 6 billion is...

Question 5

Many biologists feel that the first self-replicating organic systems were

Accepted Answer

A) types of RNA. 
B) forms of DNA. 
C) based on proteins. 
D) formed in space. 
E) plants. 
A) types of RNA. 
B) forms of DNA. 
C) based on proteins. 
D) formed in space. 
E) plants.

Question 6

Why are most Hawaiian silverswords found at high altitudes?

Accepted Answer

domesticated animals brought by human se

Question 7

What is the proper way to write a species name?

Accepted Answer

A) Pantera 
B) Pantera Leo 
C) Pantera leo 
D) pantera Leo 
E) pantera leo 
A) Pantera 
B) Pantera Leo 
C) Pantera leo 
D) pantera Leo 
E) pantera leo

Question 8

According to the endosymbiont hypothesis, what cellular components originated from free-living bacterial cells?

Accepted Answer

A) mitochondria and nucleus 
B) nuclei and ribosomes 
C) chloroplasts and ribosomes 
D) chloroplasts and mitochondria 
E) endoplasmic reticulum and mitochondria 
A) mitochondria and nucleus 
B) nuclei and ribosomes 
C) chloroplasts and ribosomes 
D) chloroplasts and mitochondria 
E) endoplasmic reticulum and mitochondria

Question 9

The Cambrian Explosion provided a wealth of fossil remains for scientists to uncover. Many of the animals from this time period had tough skins or shells. This would

Accepted Answer

A) protect the animal from osmotic pressure. 
B) be a disadvantage for these organisms and lead to their death and fossil formation. 
C) protect the animal from predators. 
D) make these animals more desirable to predators. 
E) allow the animals to move into different environments easily. 
A) protect the animal from osmotic pressure. 
B) be a disadvantage for these organisms and lead to their death and fossil formation. 
C) protect the animal from predators. 
D) make these animals more desirable to predators. 
E) allow the animals to move into different environments easily.

Question 10

Scientists think that the first eukaryotic cells did not have a cell wall. Indicate a disadvantage to this, and tell how cells might have compensated for it. Give an advantage to this, and tell how cells might have exploited it.

Accepted Answer

Disadvantage - no mechanical support and

Question 11

Evidence from Stanley Miller's experiments and evidence from carbonaceous chondrites collected from meteorites, taken together, most directly support the contention that

Accepted Answer

A) life can arise under conditions of extreme heat or cold. 
B) organic molecules can be synthesized by natural chemical processes. 
C) life did not arise on earth, but rather arrived from another planet by meteorite. 
D) living organisms are required to produce complex organic compounds. 
E) organic compounds require gravity for their formation. 
A) life can arise under conditions of extreme heat or cold. 
B) organic molecules can be synthesized by natural chemical processes. 
C) life did not arise on earth, but rather arrived from another planet by meteorite. 
D) living organisms are required to produce complex organic compounds. 
E) organic compounds require gravity for their formation.

Question 12

Compare the first forms of photosynthesis to evolve with the form used by green plants today.

Accepted Answer

The first forms of p

Question 13

Scientists have determined that the silversword alliance is most closely related to the tarweed based on

Accepted Answer

A) phylogenetic similarities. 
B) molecular comparisons. 
C) the ability of the two plants to interbreed. 
D) their geographical closeness. 
E) seed shape and color. 
A) phylogenetic similarities. 
B) molecular comparisons. 
C) the ability of the two plants to interbreed. 
D) their geographical closeness. 
E) seed shape and color.

Question 14

Biologists think that the first photosynthetic cells

Accepted Answer

A) used water as an electron donor. 
B) were the first living cells to develop. 
C) lived more than 2.8 billion years ago. 
D) released hydrogen into the atmosphere. 
E) required oxygen rather than carbon dioxide. 
A) used water as an electron donor. 
B) were the first living cells to develop. 
C) lived more than 2.8 billion years ago. 
D) released hydrogen into the atmosphere. 
E) required oxygen rather than carbon dioxide.

Question 15

Which of the following is not associated with mass extinctions?

Accepted Answer

A) After mass extinctions new species evolve to replace others. 
B) Mass extinctions do not affect species randomly. 
C) Species living in isolated areas are more susceptible to extinction. 
D) Mass extinctions take place over a very long geologic period of time. 
E) Although new species may evolve, it will take millions of years to replace the losses of a mass extinction. 
A) After mass extinctions new species evolve to replace others. 
B) Mass extinctions do not affect species randomly. 
C) Species living in isolated areas are more susceptible to extinction. 
D) Mass extinctions take place over a very long geologic period of time. 
E) Although new species may evolve, it will take millions of years to replace the losses of a mass extinction.

Question 16

The oldest fossils look as though they were formed by organisms that resemble modern

Accepted Answer

A) sponges. 
B) red algae. 
C) jellyfish. 
D) amebas. 
E) prokaryotes. 
A) sponges. 
B) red algae. 
C) jellyfish. 
D) amebas. 
E) prokaryotes.

Question 17

What term is used to indicate a characteristic that is shared and inherited from a common ancestor?

Accepted Answer

A) homologous trait 
B) analogous trait 
C) cladistic trait 
D) ancestral trait 
E) derived trait 
A) homologous trait 
B) analogous trait 
C) cladistic trait 
D) ancestral trait 
E) derived trait

Question 18

During which geological era did Pangea break apart?

Accepted Answer

A) Archean 
B) Paleozoic 
C) Mesozoic 
D) Cenozoic 
E) Proterozoic 
A) Archean 
B) Paleozoic 
C) Mesozoic 
D) Cenozoic 
E) Proterozoic

Question 19

Eukaryotic cells are thought to have

Accepted Answer

A) appeared about 2.1 billion years ago. 
B) first appeared as parts of multicellular organisms. 
C) evolved before prokaryotic cells. 
D) developed when mitochondria grew much larger in size that they had been previously. 
E) first appeared with tough cell walls. 
A) appeared about 2.1 billion years ago. 
B) first appeared as parts of multicellular organisms. 
C) evolved before prokaryotic cells. 
D) developed when mitochondria grew much larger in size that they had been previously. 
E) first appeared with tough cell walls.

Question 20

Atmospheric chemists think that Earth's first atmosphere

Accepted Answer

A) contained large amounts of molecular oxygen. 
B) consisted of carbon in the form of carbon monoxide. 
C) contained nitrogen in the form of ammonia and nitrogen gas. 
D) contained no oxygen atoms. 
E) was very similar to today's atmosphere. 
A) contained large amounts of molecular oxygen. 
B) consisted of carbon in the form of carbon monoxide. 
C) contained nitrogen in the form of ammonia and nitrogen gas. 
D) contained no oxygen atoms. 
E) was very similar to today's atmosphere.

Exam 10: Lifes Origins and Biodiversity

What term is used to indicate a relatively new characteristic, in an evolutionary sense?

Stanley Miller conducted a famous experiment in the 1950s. This experiment

Many biologists feel that the first self-replicating organic systems were

Why are most Hawaiian silverswords found at high altitudes?

What is the proper way to write a species name?

According to the endosymbiont hypothesis, what cellular components originated from free-living bacterial cells?

The Cambrian Explosion provided a wealth of fossil remains for scientists to uncover. Many of the animals from this time period had tough skins or shells. This would

Scientists think that the first eukaryotic cells did not have a cell wall. Indicate a disadvantage to this, and tell how cells might have compensated for it. Give an advantage to this, and tell how cells might have exploited it.

Evidence from Stanley Miller's experiments and evidence from carbonaceous chondrites collected from meteorites, taken together, most directly support the contention that

Compare the first forms of photosynthesis to evolve with the form used by green plants today.

Scientists have determined that the silversword alliance is most closely related to the tarweed based on

Biologists think that the first photosynthetic cells

Which of the following is not associated with mass extinctions?

The oldest fossils look as though they were formed by organisms that resemble modern

What term is used to indicate a characteristic that is shared and inherited from a common ancestor?

During which geological era did Pangea break apart?

Eukaryotic cells are thought to have

Atmospheric chemists think that Earth's first atmosphere

What Is Life

Cells and the Chemistry of Life

How Cells Take in and Use Energy

The Cell Cycle

Patterns of Inheritance

DNA: The Thread of Life

Genes, Proteins, and Genetic Engineering

Reproduction and Development

The Mechanisms of Evolution

Single-Celled Life

Fungi and Plants: Decomposers and Producers

The Evolution and Diversity of Animals

Ecology of Populations and Communities

Ecosystems and the Biosphere

Body Function, Survival, and the Steady State

Circulation and Respiration

Defense Against Disease

Animal Nutrition and Digestion

Hormones: Messengers of Change

The Nervous System

The Body in Motion

Plant Architecture and Function

Plant Growth, Hormones, and Engineering

The Dynamic Plant

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