Place these events in the history of life on Earth in order. a. accumulation of O 2 in Earth’s atmosphere b. colonization of land by plants and fungi c. diversification of animals (Cambrian explosion) d. origin of eukaryotes e. origin of humans f. origin of multicellular organisms g. origin of prokaryotes

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Answer 1

Textbook Question

Chapter 15, Problem 1SQ

Place these events in the history of life on Earth in order.

a. accumulation of O₂ in Earth’s atmosphere
b. colonization of land by plants and fungi
c. diversification of animals (Cambrian explosion)
d. origin of eukaryotes
e. origin of humans
f. origin of multicellular organisms
g. origin of prokaryotes

Expert Solution & Answer

Summary Introduction

To arrange:

The given events in history of life on the Earth in order.

Introduction:

In the starting phase of formation of the Earth, our planet was filled by reducing gases that did not supported life at the time of evolution of the Earth. Evolution of life took place in large seas and oceans in the form of certain micro-organisms like archeabacteria and coacervates. After this event, there was production of oxygen gas and thereon the atmosphere of the Earth became amicable for supporting life and hence life started.

Answer to Problem 1SQ

Correct sequence:

The theory of origin of life has not been proved till date. It is just a hypothesis. The hypothesis of origin of life can be explained according to the following sequence of events:

(g) Origin of prokaryotes

(a) Accumulation of oxygen in the Earth’s atmosphere.

(d) Origin of eukaryotes.

(f) Origin of multi-cellular organisms.

(c) Diversification of animals (Cambrian explosion)

(b) Colonization of land plants and fungi

(e) Origin of humans.

Explanation of Solution

The reason for the above sequence is as follows:

First, the life started in sea as the aggregation of organic molecules which then gave rise to micro-organisms. The first to be evolved on the Earth was archeabacteria, then bacteria, and other micro-organisms evolved after them. First, the micro-organisms survived and gave out reducing gases that were prevalent at that time. Then, these micro-organisms started giving out oxygen so in this way there was the evolution and the accumulation of oxygen started.

As the O₂ gas started accumulating, there was the evolution of single-cellular eukaryotic organisms. As the eukaryotic organisms become in good quantity, they began to grow in groups and in this way there was the evolution of multicellular organisms. After this, there was evolution of plants and then plants and fungi became to grow in groups or colonies.

Next, evolution tree was the evolution and development of animals. After this there was evolution of different types of animals. In this way, the diversification of animals took place. Finally, the most highly evolved animal humans evolved.

Conclusion

The correct order of evolution was the evolution of prokaryotes, the accumulation of oxygen in the Earth’s atmosphere, origin of eukaryotes, origin of multicellular organisms, colonization of land plants and fungi, diversification of animals (Cambrian explosion) and finally at last, origin of humans took place.

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Imagine that you are a clinical geneticist. Your colleague is an oncologist who wants your help explaining the basics of genetics to their patient, who will be undergoing genetic testing in the coming weeks for possible acute myeloid leukemia (AML) induced by the radiation she had several years ago for breast cancer. Write a 1,050- to 1,225-word memo to your colleague. Include the following in your memo: An explanation of the molecular structure of DNA and RNA, highlighting both similarities and differences A description of the processes of transcription and translation An explanation of the differences between leading and lagging strands and how the DNA is replicated in each strand Reponses to the following common questions patients might ask about this type of genetic testing and genetic disorder: Does AML run in families? What genes are tested for?

Respond to the following in a minimum of 175 words: What are some potential consequences that could result if the processes of replication, transcription, and translation don’t function correctly? Provide an example of how you might explain these consequences in terms that patients might understand.

Answer 2

Textbook Question

Chapter 15, Problem 1SQ

Place these events in the history of life on Earth in order.

a. accumulation of O₂ in Earth’s atmosphere
b. colonization of land by plants and fungi
c. diversification of animals (Cambrian explosion)
d. origin of eukaryotes
e. origin of humans
f. origin of multicellular organisms
g. origin of prokaryotes

Expert Solution & Answer

Summary Introduction

To arrange:

The given events in history of life on the Earth in order.

Introduction:

In the starting phase of formation of the Earth, our planet was filled by reducing gases that did not supported life at the time of evolution of the Earth. Evolution of life took place in large seas and oceans in the form of certain micro-organisms like archeabacteria and coacervates. After this event, there was production of oxygen gas and thereon the atmosphere of the Earth became amicable for supporting life and hence life started.

Answer to Problem 1SQ

Correct sequence:

The theory of origin of life has not been proved till date. It is just a hypothesis. The hypothesis of origin of life can be explained according to the following sequence of events:

(g) Origin of prokaryotes

(a) Accumulation of oxygen in the Earth’s atmosphere.

(d) Origin of eukaryotes.

(f) Origin of multi-cellular organisms.

(c) Diversification of animals (Cambrian explosion)

(b) Colonization of land plants and fungi

(e) Origin of humans.

Explanation of Solution

The reason for the above sequence is as follows:

First, the life started in sea as the aggregation of organic molecules which then gave rise to micro-organisms. The first to be evolved on the Earth was archeabacteria, then bacteria, and other micro-organisms evolved after them. First, the micro-organisms survived and gave out reducing gases that were prevalent at that time. Then, these micro-organisms started giving out oxygen so in this way there was the evolution and the accumulation of oxygen started.

As the O₂ gas started accumulating, there was the evolution of single-cellular eukaryotic organisms. As the eukaryotic organisms become in good quantity, they began to grow in groups and in this way there was the evolution of multicellular organisms. After this, there was evolution of plants and then plants and fungi became to grow in groups or colonies.

Next, evolution tree was the evolution and development of animals. After this there was evolution of different types of animals. In this way, the diversification of animals took place. Finally, the most highly evolved animal humans evolved.

Conclusion

The correct order of evolution was the evolution of prokaryotes, the accumulation of oxygen in the Earth’s atmosphere, origin of eukaryotes, origin of multicellular organisms, colonization of land plants and fungi, diversification of animals (Cambrian explosion) and finally at last, origin of humans took place.

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Answer 3

Textbook Question

Chapter 15, Problem 1SQ

Place these events in the history of life on Earth in order.

a. accumulation of O₂ in Earth’s atmosphere
b. colonization of land by plants and fungi
c. diversification of animals (Cambrian explosion)
d. origin of eukaryotes
e. origin of humans
f. origin of multicellular organisms
g. origin of prokaryotes

Expert Solution & Answer

Summary Introduction

To arrange:

The given events in history of life on the Earth in order.

Introduction:

In the starting phase of formation of the Earth, our planet was filled by reducing gases that did not supported life at the time of evolution of the Earth. Evolution of life took place in large seas and oceans in the form of certain micro-organisms like archeabacteria and coacervates. After this event, there was production of oxygen gas and thereon the atmosphere of the Earth became amicable for supporting life and hence life started.

Answer to Problem 1SQ

Correct sequence:

The theory of origin of life has not been proved till date. It is just a hypothesis. The hypothesis of origin of life can be explained according to the following sequence of events:

(g) Origin of prokaryotes

(a) Accumulation of oxygen in the Earth’s atmosphere.

(d) Origin of eukaryotes.

(f) Origin of multi-cellular organisms.

(c) Diversification of animals (Cambrian explosion)

(b) Colonization of land plants and fungi

(e) Origin of humans.

Explanation of Solution

The reason for the above sequence is as follows:

First, the life started in sea as the aggregation of organic molecules which then gave rise to micro-organisms. The first to be evolved on the Earth was archeabacteria, then bacteria, and other micro-organisms evolved after them. First, the micro-organisms survived and gave out reducing gases that were prevalent at that time. Then, these micro-organisms started giving out oxygen so in this way there was the evolution and the accumulation of oxygen started.

As the O₂ gas started accumulating, there was the evolution of single-cellular eukaryotic organisms. As the eukaryotic organisms become in good quantity, they began to grow in groups and in this way there was the evolution of multicellular organisms. After this, there was evolution of plants and then plants and fungi became to grow in groups or colonies.

Next, evolution tree was the evolution and development of animals. After this there was evolution of different types of animals. In this way, the diversification of animals took place. Finally, the most highly evolved animal humans evolved.

Conclusion

The correct order of evolution was the evolution of prokaryotes, the accumulation of oxygen in the Earth’s atmosphere, origin of eukaryotes, origin of multicellular organisms, colonization of land plants and fungi, diversification of animals (Cambrian explosion) and finally at last, origin of humans took place.

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Answer 4

Textbook Question

Chapter 15, Problem 1SQ

Place these events in the history of life on Earth in order.

a. accumulation of O₂ in Earth’s atmosphere
b. colonization of land by plants and fungi
c. diversification of animals (Cambrian explosion)
d. origin of eukaryotes
e. origin of humans
f. origin of multicellular organisms
g. origin of prokaryotes

Expert Solution & Answer

Summary Introduction

To arrange:

The given events in history of life on the Earth in order.

Introduction:

In the starting phase of formation of the Earth, our planet was filled by reducing gases that did not supported life at the time of evolution of the Earth. Evolution of life took place in large seas and oceans in the form of certain micro-organisms like archeabacteria and coacervates. After this event, there was production of oxygen gas and thereon the atmosphere of the Earth became amicable for supporting life and hence life started.

Answer to Problem 1SQ

Correct sequence:

The theory of origin of life has not been proved till date. It is just a hypothesis. The hypothesis of origin of life can be explained according to the following sequence of events:

(g) Origin of prokaryotes

(a) Accumulation of oxygen in the Earth’s atmosphere.

(d) Origin of eukaryotes.

(f) Origin of multi-cellular organisms.

(c) Diversification of animals (Cambrian explosion)

(b) Colonization of land plants and fungi

(e) Origin of humans.

Explanation of Solution

The reason for the above sequence is as follows:

First, the life started in sea as the aggregation of organic molecules which then gave rise to micro-organisms. The first to be evolved on the Earth was archeabacteria, then bacteria, and other micro-organisms evolved after them. First, the micro-organisms survived and gave out reducing gases that were prevalent at that time. Then, these micro-organisms started giving out oxygen so in this way there was the evolution and the accumulation of oxygen started.

As the O₂ gas started accumulating, there was the evolution of single-cellular eukaryotic organisms. As the eukaryotic organisms become in good quantity, they began to grow in groups and in this way there was the evolution of multicellular organisms. After this, there was evolution of plants and then plants and fungi became to grow in groups or colonies.

Next, evolution tree was the evolution and development of animals. After this there was evolution of different types of animals. In this way, the diversification of animals took place. Finally, the most highly evolved animal humans evolved.

Conclusion

The correct order of evolution was the evolution of prokaryotes, the accumulation of oxygen in the Earth’s atmosphere, origin of eukaryotes, origin of multicellular organisms, colonization of land plants and fungi, diversification of animals (Cambrian explosion) and finally at last, origin of humans took place.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

To arrange:

The given events in history of life on the Earth in order.

Introduction:

In the starting phase of formation of the Earth, our planet was filled by reducing gases that did not supported life at the time of evolution of the Earth. Evolution of life took place in large seas and oceans in the form of certain micro-organisms like archeabacteria and coacervates. After this event, there was production of oxygen gas and thereon the atmosphere of the Earth became amicable for supporting life and hence life started.

Answer to Problem 1SQ

Correct sequence:

The theory of origin of life has not been proved till date. It is just a hypothesis. The hypothesis of origin of life can be explained according to the following sequence of events:

(g) Origin of prokaryotes

(a) Accumulation of oxygen in the Earth’s atmosphere.

(d) Origin of eukaryotes.

(f) Origin of multi-cellular organisms.

(c) Diversification of animals (Cambrian explosion)

(b) Colonization of land plants and fungi

(e) Origin of humans.

Explanation of Solution

The reason for the above sequence is as follows:

First, the life started in sea as the aggregation of organic molecules which then gave rise to micro-organisms. The first to be evolved on the Earth was archeabacteria, then bacteria, and other micro-organisms evolved after them. First, the micro-organisms survived and gave out reducing gases that were prevalent at that time. Then, these micro-organisms started giving out oxygen so in this way there was the evolution and the accumulation of oxygen started.

As the O₂ gas started accumulating, there was the evolution of single-cellular eukaryotic organisms. As the eukaryotic organisms become in good quantity, they began to grow in groups and in this way there was the evolution of multicellular organisms. After this, there was evolution of plants and then plants and fungi became to grow in groups or colonies.

Next, evolution tree was the evolution and development of animals. After this there was evolution of different types of animals. In this way, the diversification of animals took place. Finally, the most highly evolved animal humans evolved.

Conclusion

The correct order of evolution was the evolution of prokaryotes, the accumulation of oxygen in the Earth’s atmosphere, origin of eukaryotes, origin of multicellular organisms, colonization of land plants and fungi, diversification of animals (Cambrian explosion) and finally at last, origin of humans took place.

Answer 8

Expert Solution & Answer

Summary Introduction

To arrange:

The given events in history of life on the Earth in order.

Introduction:

In the starting phase of formation of the Earth, our planet was filled by reducing gases that did not supported life at the time of evolution of the Earth. Evolution of life took place in large seas and oceans in the form of certain micro-organisms like archeabacteria and coacervates. After this event, there was production of oxygen gas and thereon the atmosphere of the Earth became amicable for supporting life and hence life started.

Answer to Problem 1SQ

Correct sequence:

The theory of origin of life has not been proved till date. It is just a hypothesis. The hypothesis of origin of life can be explained according to the following sequence of events:

(g) Origin of prokaryotes

(a) Accumulation of oxygen in the Earth’s atmosphere.

(d) Origin of eukaryotes.

(f) Origin of multi-cellular organisms.

(c) Diversification of animals (Cambrian explosion)

(b) Colonization of land plants and fungi

(e) Origin of humans.

Explanation of Solution

The reason for the above sequence is as follows:

First, the life started in sea as the aggregation of organic molecules which then gave rise to micro-organisms. The first to be evolved on the Earth was archeabacteria, then bacteria, and other micro-organisms evolved after them. First, the micro-organisms survived and gave out reducing gases that were prevalent at that time. Then, these micro-organisms started giving out oxygen so in this way there was the evolution and the accumulation of oxygen started.

As the O₂ gas started accumulating, there was the evolution of single-cellular eukaryotic organisms. As the eukaryotic organisms become in good quantity, they began to grow in groups and in this way there was the evolution of multicellular organisms. After this, there was evolution of plants and then plants and fungi became to grow in groups or colonies.

Next, evolution tree was the evolution and development of animals. After this there was evolution of different types of animals. In this way, the diversification of animals took place. Finally, the most highly evolved animal humans evolved.

Conclusion

The correct order of evolution was the evolution of prokaryotes, the accumulation of oxygen in the Earth’s atmosphere, origin of eukaryotes, origin of multicellular organisms, colonization of land plants and fungi, diversification of animals (Cambrian explosion) and finally at last, origin of humans took place.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

To arrange:

The given events in history of life on the Earth in order.

Introduction:

In the starting phase of formation of the Earth, our planet was filled by reducing gases that did not supported life at the time of evolution of the Earth. Evolution of life took place in large seas and oceans in the form of certain micro-organisms like archeabacteria and coacervates. After this event, there was production of oxygen gas and thereon the atmosphere of the Earth became amicable for supporting life and hence life started.

Answer 12

Answer to Problem 1SQ

Correct sequence:

The theory of origin of life has not been proved till date. It is just a hypothesis. The hypothesis of origin of life can be explained according to the following sequence of events:

(g) Origin of prokaryotes

(a) Accumulation of oxygen in the Earth’s atmosphere.

(d) Origin of eukaryotes.

(f) Origin of multi-cellular organisms.

(c) Diversification of animals (Cambrian explosion)

(b) Colonization of land plants and fungi

(e) Origin of humans.

Answer 13

Explanation of Solution

The reason for the above sequence is as follows:

First, the life started in sea as the aggregation of organic molecules which then gave rise to micro-organisms. The first to be evolved on the Earth was archeabacteria, then bacteria, and other micro-organisms evolved after them. First, the micro-organisms survived and gave out reducing gases that were prevalent at that time. Then, these micro-organisms started giving out oxygen so in this way there was the evolution and the accumulation of oxygen started.

As the O₂ gas started accumulating, there was the evolution of single-cellular eukaryotic organisms. As the eukaryotic organisms become in good quantity, they began to grow in groups and in this way there was the evolution of multicellular organisms. After this, there was evolution of plants and then plants and fungi became to grow in groups or colonies.

Next, evolution tree was the evolution and development of animals. After this there was evolution of different types of animals. In this way, the diversification of animals took place. Finally, the most highly evolved animal humans evolved.

Answer 14

Conclusion

The correct order of evolution was the evolution of prokaryotes, the accumulation of oxygen in the Earth’s atmosphere, origin of eukaryotes, origin of multicellular organisms, colonization of land plants and fungi, diversification of animals (Cambrian explosion) and finally at last, origin of humans took place.

Answer 15

Ch. 15 - Place these events in the history of life on Earth...Ch. 15 - Prob. 2SQ Ch. 15 - DNA replication relies on the enzyme DNA...Ch. 15 - Prob. 4SQ Ch. 15 - Some species of cyanobacteria form symbiotic...Ch. 15 - The bacteria that cause tetanus can be killed only...Ch. 15 - How is the process used in sewage treatment...Ch. 15 - Prob. 8SQ Ch. 15 - Prob. 9SQ Ch. 15 - Prob. 10SQ

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