The oldest fossil eukaryote that can be resolved taxonomically is of A. a red alga that lived 1.2 billion years ago. B. a green alga that lived 635 million years ago. C. a fungus that lived 2 billion years ago. D. an Ediacaran that lived 550 million years ago.

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Answer 1

Textbook Question

Chapter 25, Problem 1TYU

The oldest fossil eukaryote that can be resolved taxonomically is of

A. a red alga that lived 1.2 billion years ago.
B. a green alga that lived 635 million years ago.
C. a fungus that lived 2 billion years ago.
D. an Ediacaran that lived 550 million years ago.

Expert Solution & Answer

Summary Introduction

Introduction:

Eukaryotic organisms need oxygen to survive. They are found in higher amounts in the atmosphere and are multicellular organisms.

Answer to Problem 1TYU

Correct answer:

The oldest fossil eukaryotic alga is a red alga that lived 1.2 billion years ago. Therefore, option (A) is correct.

Explanation of Solution

Reason for the correct statement:

The red alga lived 1.2 billion years ago and required oxygen for survival. This evidence suggests that oxygen was present to support the survival of the red alga.

Option (A) is given as “a red alga that lived 1.2 billion years ago”.

The oldest fossil eukaryote was determined taxonomically as a red alga, which lived 1.2 billion years ago. Hence, it is the right answer.

Hence, option (A) is correct.

Reasons for the incorrect statements:

Option (B) is given as “a green alga that lived 635 million years ago”.

A green alga belongs to the group of cyanobacteria, which is the group of prokaryotes and not eukaryotes. Hence, it is the wrong answer.

Option (C) is given as “a fungus that lived 2 billion years ago”.

A fungus that lived 2 billion years ago belongs to a different taxonomic group and was not an eukaryotic organism. Hence, it is the wrong answer.

Option (D) is given as “an Ediacaran that lived 550 million years ago”.

In the Ediacaran period, different shapes and sizes of organisms lived, but at that time there was no evidence of the presence of eukaryotes. Hence, it is the wrong answer.

Hence, options (B), (C), and (D) are incorrect.

Conclusion

The red alga is the oldest eukaryotic alga reported by fossil records. This eukaryotic organism requires oxygen to survive and they lived 1.2 billion years ago.

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Answer 2

Textbook Question

Chapter 25, Problem 1TYU

The oldest fossil eukaryote that can be resolved taxonomically is of

A. a red alga that lived 1.2 billion years ago.
B. a green alga that lived 635 million years ago.
C. a fungus that lived 2 billion years ago.
D. an Ediacaran that lived 550 million years ago.

Expert Solution & Answer

Summary Introduction

Introduction:

Eukaryotic organisms need oxygen to survive. They are found in higher amounts in the atmosphere and are multicellular organisms.

Answer to Problem 1TYU

Correct answer:

The oldest fossil eukaryotic alga is a red alga that lived 1.2 billion years ago. Therefore, option (A) is correct.

Explanation of Solution

Reason for the correct statement:

The red alga lived 1.2 billion years ago and required oxygen for survival. This evidence suggests that oxygen was present to support the survival of the red alga.

Option (A) is given as “a red alga that lived 1.2 billion years ago”.

The oldest fossil eukaryote was determined taxonomically as a red alga, which lived 1.2 billion years ago. Hence, it is the right answer.

Hence, option (A) is correct.

Reasons for the incorrect statements:

Option (B) is given as “a green alga that lived 635 million years ago”.

A green alga belongs to the group of cyanobacteria, which is the group of prokaryotes and not eukaryotes. Hence, it is the wrong answer.

Option (C) is given as “a fungus that lived 2 billion years ago”.

A fungus that lived 2 billion years ago belongs to a different taxonomic group and was not an eukaryotic organism. Hence, it is the wrong answer.

Option (D) is given as “an Ediacaran that lived 550 million years ago”.

In the Ediacaran period, different shapes and sizes of organisms lived, but at that time there was no evidence of the presence of eukaryotes. Hence, it is the wrong answer.

Hence, options (B), (C), and (D) are incorrect.

Conclusion

The red alga is the oldest eukaryotic alga reported by fossil records. This eukaryotic organism requires oxygen to survive and they lived 1.2 billion years ago.

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

Answer 3

Textbook Question

Chapter 25, Problem 1TYU

The oldest fossil eukaryote that can be resolved taxonomically is of

A. a red alga that lived 1.2 billion years ago.
B. a green alga that lived 635 million years ago.
C. a fungus that lived 2 billion years ago.
D. an Ediacaran that lived 550 million years ago.

Expert Solution & Answer

Summary Introduction

Introduction:

Eukaryotic organisms need oxygen to survive. They are found in higher amounts in the atmosphere and are multicellular organisms.

Answer to Problem 1TYU

Correct answer:

The oldest fossil eukaryotic alga is a red alga that lived 1.2 billion years ago. Therefore, option (A) is correct.

Explanation of Solution

Reason for the correct statement:

The red alga lived 1.2 billion years ago and required oxygen for survival. This evidence suggests that oxygen was present to support the survival of the red alga.

Option (A) is given as “a red alga that lived 1.2 billion years ago”.

The oldest fossil eukaryote was determined taxonomically as a red alga, which lived 1.2 billion years ago. Hence, it is the right answer.

Hence, option (A) is correct.

Reasons for the incorrect statements:

Option (B) is given as “a green alga that lived 635 million years ago”.

A green alga belongs to the group of cyanobacteria, which is the group of prokaryotes and not eukaryotes. Hence, it is the wrong answer.

Option (C) is given as “a fungus that lived 2 billion years ago”.

A fungus that lived 2 billion years ago belongs to a different taxonomic group and was not an eukaryotic organism. Hence, it is the wrong answer.

Option (D) is given as “an Ediacaran that lived 550 million years ago”.

In the Ediacaran period, different shapes and sizes of organisms lived, but at that time there was no evidence of the presence of eukaryotes. Hence, it is the wrong answer.

Hence, options (B), (C), and (D) are incorrect.

Conclusion

The red alga is the oldest eukaryotic alga reported by fossil records. This eukaryotic organism requires oxygen to survive and they lived 1.2 billion years ago.

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Answer 4

Textbook Question

Chapter 25, Problem 1TYU

The oldest fossil eukaryote that can be resolved taxonomically is of

A. a red alga that lived 1.2 billion years ago.
B. a green alga that lived 635 million years ago.
C. a fungus that lived 2 billion years ago.
D. an Ediacaran that lived 550 million years ago.

Expert Solution & Answer

Summary Introduction

Introduction:

Eukaryotic organisms need oxygen to survive. They are found in higher amounts in the atmosphere and are multicellular organisms.

Answer to Problem 1TYU

Correct answer:

The oldest fossil eukaryotic alga is a red alga that lived 1.2 billion years ago. Therefore, option (A) is correct.

Explanation of Solution

Reason for the correct statement:

The red alga lived 1.2 billion years ago and required oxygen for survival. This evidence suggests that oxygen was present to support the survival of the red alga.

Option (A) is given as “a red alga that lived 1.2 billion years ago”.

The oldest fossil eukaryote was determined taxonomically as a red alga, which lived 1.2 billion years ago. Hence, it is the right answer.

Hence, option (A) is correct.

Reasons for the incorrect statements:

Option (B) is given as “a green alga that lived 635 million years ago”.

A green alga belongs to the group of cyanobacteria, which is the group of prokaryotes and not eukaryotes. Hence, it is the wrong answer.

Option (C) is given as “a fungus that lived 2 billion years ago”.

A fungus that lived 2 billion years ago belongs to a different taxonomic group and was not an eukaryotic organism. Hence, it is the wrong answer.

Option (D) is given as “an Ediacaran that lived 550 million years ago”.

In the Ediacaran period, different shapes and sizes of organisms lived, but at that time there was no evidence of the presence of eukaryotes. Hence, it is the wrong answer.

Hence, options (B), (C), and (D) are incorrect.

Conclusion

The red alga is the oldest eukaryotic alga reported by fossil records. This eukaryotic organism requires oxygen to survive and they lived 1.2 billion years ago.

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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

Introduction:

Eukaryotic organisms need oxygen to survive. They are found in higher amounts in the atmosphere and are multicellular organisms.

Answer to Problem 1TYU

Correct answer:

The oldest fossil eukaryotic alga is a red alga that lived 1.2 billion years ago. Therefore, option (A) is correct.

Explanation of Solution

Reason for the correct statement:

The red alga lived 1.2 billion years ago and required oxygen for survival. This evidence suggests that oxygen was present to support the survival of the red alga.

Option (A) is given as “a red alga that lived 1.2 billion years ago”.

The oldest fossil eukaryote was determined taxonomically as a red alga, which lived 1.2 billion years ago. Hence, it is the right answer.

Hence, option (A) is correct.

Reasons for the incorrect statements:

Option (B) is given as “a green alga that lived 635 million years ago”.

A green alga belongs to the group of cyanobacteria, which is the group of prokaryotes and not eukaryotes. Hence, it is the wrong answer.

Option (C) is given as “a fungus that lived 2 billion years ago”.

A fungus that lived 2 billion years ago belongs to a different taxonomic group and was not an eukaryotic organism. Hence, it is the wrong answer.

Option (D) is given as “an Ediacaran that lived 550 million years ago”.

In the Ediacaran period, different shapes and sizes of organisms lived, but at that time there was no evidence of the presence of eukaryotes. Hence, it is the wrong answer.

Hence, options (B), (C), and (D) are incorrect.

Conclusion

The red alga is the oldest eukaryotic alga reported by fossil records. This eukaryotic organism requires oxygen to survive and they lived 1.2 billion years ago.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Eukaryotic organisms need oxygen to survive. They are found in higher amounts in the atmosphere and are multicellular organisms.

Answer to Problem 1TYU

Correct answer:

The oldest fossil eukaryotic alga is a red alga that lived 1.2 billion years ago. Therefore, option (A) is correct.

Explanation of Solution

Reason for the correct statement:

The red alga lived 1.2 billion years ago and required oxygen for survival. This evidence suggests that oxygen was present to support the survival of the red alga.

Option (A) is given as “a red alga that lived 1.2 billion years ago”.

The oldest fossil eukaryote was determined taxonomically as a red alga, which lived 1.2 billion years ago. Hence, it is the right answer.

Hence, option (A) is correct.

Reasons for the incorrect statements:

Option (B) is given as “a green alga that lived 635 million years ago”.

A green alga belongs to the group of cyanobacteria, which is the group of prokaryotes and not eukaryotes. Hence, it is the wrong answer.

Option (C) is given as “a fungus that lived 2 billion years ago”.

A fungus that lived 2 billion years ago belongs to a different taxonomic group and was not an eukaryotic organism. Hence, it is the wrong answer.

Option (D) is given as “an Ediacaran that lived 550 million years ago”.

In the Ediacaran period, different shapes and sizes of organisms lived, but at that time there was no evidence of the presence of eukaryotes. Hence, it is the wrong answer.

Hence, options (B), (C), and (D) are incorrect.

Conclusion

The red alga is the oldest eukaryotic alga reported by fossil records. This eukaryotic organism requires oxygen to survive and they lived 1.2 billion years ago.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Eukaryotic organisms need oxygen to survive. They are found in higher amounts in the atmosphere and are multicellular organisms.

Answer 12

Answer to Problem 1TYU

Correct answer:

The oldest fossil eukaryotic alga is a red alga that lived 1.2 billion years ago. Therefore, option (A) is correct.

Answer 13

Explanation of Solution

Reason for the correct statement:

The red alga lived 1.2 billion years ago and required oxygen for survival. This evidence suggests that oxygen was present to support the survival of the red alga.

Option (A) is given as “a red alga that lived 1.2 billion years ago”.

The oldest fossil eukaryote was determined taxonomically as a red alga, which lived 1.2 billion years ago. Hence, it is the right answer.

Hence, option (A) is correct.

Reasons for the incorrect statements:

Option (B) is given as “a green alga that lived 635 million years ago”.

A green alga belongs to the group of cyanobacteria, which is the group of prokaryotes and not eukaryotes. Hence, it is the wrong answer.

Option (C) is given as “a fungus that lived 2 billion years ago”.

A fungus that lived 2 billion years ago belongs to a different taxonomic group and was not an eukaryotic organism. Hence, it is the wrong answer.

Option (D) is given as “an Ediacaran that lived 550 million years ago”.

In the Ediacaran period, different shapes and sizes of organisms lived, but at that time there was no evidence of the presence of eukaryotes. Hence, it is the wrong answer.

Hence, options (B), (C), and (D) are incorrect.

Answer 14

Conclusion

The red alga is the oldest eukaryotic alga reported by fossil records. This eukaryotic organism requires oxygen to survive and they lived 1.2 billion years ago.

Answer 15

Ch. 25.1 - Describe major events in the evolution of early...Ch. 25.1 - Explain why eukaryotes are said to be combination...Ch. 25.1 - Prob. 3CC Ch. 25.2 - Summarize the evidence that choanoflagellates are...Ch. 25.2 - MAKE CONNECTlONS Describe how the origin of...Ch. 25.2 - Prob. 3CC Ch. 25.3 - Briefly describe the organisms found in each of...Ch. 25.3 - MAKE CONNECTIONS Review Figures 7.2 and 8.5...Ch. 25.3 - Prob. 3CC Ch. 25.3 - Prob. 4CC

The oldest fossil eukaryote that can be resolved taxonomically is of A. a red alga that lived 1.2 billion years ago. B. a green alga that lived 635 million years ago. C. a fungus that lived 2 billion years ago. D. an Ediacaran that lived 550 million years ago.

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