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.

Question

Want to see more full solutions like this?

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.

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!

Students have asked these similar questions

Fossilized stromatolites(A) formed around deep-sea vents.(B) resemble structures formed by bacterial communities that are found today in some shallowmarine bays.(C) provide evidence that plants moved onto landin the company of fungi around 500 million years ago.(D) contain the first undisputed fossils of eukaryotes.

Why is the classification of protists based on DNA sequences useful? * a. Because only protists have DNA b. Because it has confirmed the traditional categories for protists c. Because it has revealed evolutionary relationships, even among organisms that look diffferent d. All of the above are correct This is a required question (2) Why is a species with small population more likely than one with a large population to undergo an extinction? * a. Because small population are exposed to greater environmental changes b. Because genetic diversity is likely to be lower in a small population c. Because the mutation rate is too low d. Because they take too long to produce an offspring.

What is true about organisms that are a part of the same clade? a. They all share the same basic characteristics. b. They evolved from a shared ancestor. c. They usually fall into the same classification taxa. d. They have identical phylogenies.

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.

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 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.

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 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.

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

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. 25.4 - Justify the claim that photosynthetic protists are...

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.

Concept explainers

Videos

Answer to Problem 1TYU

Explanation of Solution

Want to see more full solutions like this?

Chapter 25 Solutions

Additional Science Textbook Solutions