Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Question

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Answer 1

Question

Chapter 33, Problem 1TYK

Summary Introduction

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

The multicellularity is the derived trait that distinguishes animals as a monophyletic group and makes them distinct from choanoflagellates, since animals are multicellular and choanoflagellates are unicellular, free-living, colony-forming eukaryotes, and contain collared flagellates.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (a) is given as multicellularity. Multicellularity represents the presence of more than one types of cells with different features and functions. Choanoflagellates differ from animals on the basis of multicellularity. Choanoflagellates do not exhibit muticellularity, whereas animals are multicellular organisms. Hence, option (a) is correct.

Explanation for incorrect answer:

Option (b) is given as coloniality. Coloniality refers association of organsims in form of colonies. It can be shown by both animals and choanoflagellates. So, it is an incorrect option.

Option (c) is given as heterotrophy. Heterotrphy shows state of being heterotropic that cannot produce their own food. Both animals and choanoflagellates are heterotrophs. So, it is an incorrect option.

Option (d) is given as movement. This characteristic is not classify animals from choanoflagellates, since both of the organisms are motile. So, it is an incorrect option.

Hence, options (b), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded the choanoflagellates are distinguished from animals on the basis of multicellarity.

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Answer 2

Question

Chapter 33, Problem 1TYK

Summary Introduction

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

The multicellularity is the derived trait that distinguishes animals as a monophyletic group and makes them distinct from choanoflagellates, since animals are multicellular and choanoflagellates are unicellular, free-living, colony-forming eukaryotes, and contain collared flagellates.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (a) is given as multicellularity. Multicellularity represents the presence of more than one types of cells with different features and functions. Choanoflagellates differ from animals on the basis of multicellularity. Choanoflagellates do not exhibit muticellularity, whereas animals are multicellular organisms. Hence, option (a) is correct.

Explanation for incorrect answer:

Option (b) is given as coloniality. Coloniality refers association of organsims in form of colonies. It can be shown by both animals and choanoflagellates. So, it is an incorrect option.

Option (c) is given as heterotrophy. Heterotrphy shows state of being heterotropic that cannot produce their own food. Both animals and choanoflagellates are heterotrophs. So, it is an incorrect option.

Option (d) is given as movement. This characteristic is not classify animals from choanoflagellates, since both of the organisms are motile. So, it is an incorrect option.

Hence, options (b), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded the choanoflagellates are distinguished from animals on the basis of multicellarity.

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Answer 3

Question

Chapter 33, Problem 1TYK

Summary Introduction

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

The multicellularity is the derived trait that distinguishes animals as a monophyletic group and makes them distinct from choanoflagellates, since animals are multicellular and choanoflagellates are unicellular, free-living, colony-forming eukaryotes, and contain collared flagellates.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (a) is given as multicellularity. Multicellularity represents the presence of more than one types of cells with different features and functions. Choanoflagellates differ from animals on the basis of multicellularity. Choanoflagellates do not exhibit muticellularity, whereas animals are multicellular organisms. Hence, option (a) is correct.

Explanation for incorrect answer:

Option (b) is given as coloniality. Coloniality refers association of organsims in form of colonies. It can be shown by both animals and choanoflagellates. So, it is an incorrect option.

Option (c) is given as heterotrophy. Heterotrphy shows state of being heterotropic that cannot produce their own food. Both animals and choanoflagellates are heterotrophs. So, it is an incorrect option.

Option (d) is given as movement. This characteristic is not classify animals from choanoflagellates, since both of the organisms are motile. So, it is an incorrect option.

Hence, options (b), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded the choanoflagellates are distinguished from animals on the basis of multicellarity.

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Answer 4

Question

Chapter 33, Problem 1TYK

Summary Introduction

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

The multicellularity is the derived trait that distinguishes animals as a monophyletic group and makes them distinct from choanoflagellates, since animals are multicellular and choanoflagellates are unicellular, free-living, colony-forming eukaryotes, and contain collared flagellates.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (a) is given as multicellularity. Multicellularity represents the presence of more than one types of cells with different features and functions. Choanoflagellates differ from animals on the basis of multicellularity. Choanoflagellates do not exhibit muticellularity, whereas animals are multicellular organisms. Hence, option (a) is correct.

Explanation for incorrect answer:

Option (b) is given as coloniality. Coloniality refers association of organsims in form of colonies. It can be shown by both animals and choanoflagellates. So, it is an incorrect option.

Option (c) is given as heterotrophy. Heterotrphy shows state of being heterotropic that cannot produce their own food. Both animals and choanoflagellates are heterotrophs. So, it is an incorrect option.

Option (d) is given as movement. This characteristic is not classify animals from choanoflagellates, since both of the organisms are motile. So, it is an incorrect option.

Hence, options (b), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded the choanoflagellates are distinguished from animals on the basis of multicellarity.

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Answer 5

Chapter 33, Problem 1TYK

Summary Introduction

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

The multicellularity is the derived trait that distinguishes animals as a monophyletic group and makes them distinct from choanoflagellates, since animals are multicellular and choanoflagellates are unicellular, free-living, colony-forming eukaryotes, and contain collared flagellates.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (a) is given as multicellularity. Multicellularity represents the presence of more than one types of cells with different features and functions. Choanoflagellates differ from animals on the basis of multicellularity. Choanoflagellates do not exhibit muticellularity, whereas animals are multicellular organisms. Hence, option (a) is correct.

Explanation for incorrect answer:

Option (b) is given as coloniality. Coloniality refers association of organsims in form of colonies. It can be shown by both animals and choanoflagellates. So, it is an incorrect option.

Option (c) is given as heterotrophy. Heterotrphy shows state of being heterotropic that cannot produce their own food. Both animals and choanoflagellates are heterotrophs. So, it is an incorrect option.

Option (d) is given as movement. This characteristic is not classify animals from choanoflagellates, since both of the organisms are motile. So, it is an incorrect option.

Hence, options (b), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded the choanoflagellates are distinguished from animals on the basis of multicellarity.

Answer 6

Chapter 33, Problem 1TYK

Summary Introduction

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

The multicellularity is the derived trait that distinguishes animals as a monophyletic group and makes them distinct from choanoflagellates, since animals are multicellular and choanoflagellates are unicellular, free-living, colony-forming eukaryotes, and contain collared flagellates.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (a) is given as multicellularity. Multicellularity represents the presence of more than one types of cells with different features and functions. Choanoflagellates differ from animals on the basis of multicellularity. Choanoflagellates do not exhibit muticellularity, whereas animals are multicellular organisms. Hence, option (a) is correct.

Explanation for incorrect answer:

Option (b) is given as coloniality. Coloniality refers association of organsims in form of colonies. It can be shown by both animals and choanoflagellates. So, it is an incorrect option.

Option (c) is given as heterotrophy. Heterotrphy shows state of being heterotropic that cannot produce their own food. Both animals and choanoflagellates are heterotrophs. So, it is an incorrect option.

Option (d) is given as movement. This characteristic is not classify animals from choanoflagellates, since both of the organisms are motile. So, it is an incorrect option.

Hence, options (b), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded the choanoflagellates are distinguished from animals on the basis of multicellarity.

Answer 7

Chapter 33, Problem 1TYK

Summary Introduction

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Answer 8

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

The multicellularity is the derived trait that distinguishes animals as a monophyletic group and makes them distinct from choanoflagellates, since animals are multicellular and choanoflagellates are unicellular, free-living, colony-forming eukaryotes, and contain collared flagellates.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Explanation/Justification for the correct answer:

Option (a) is given as multicellularity. Multicellularity represents the presence of more than one types of cells with different features and functions. Choanoflagellates differ from animals on the basis of multicellularity. Choanoflagellates do not exhibit muticellularity, whereas animals are multicellular organisms. Hence, option (a) is correct.

Explanation for incorrect answer:

Option (b) is given as coloniality. Coloniality refers association of organsims in form of colonies. It can be shown by both animals and choanoflagellates. So, it is an incorrect option.

Option (c) is given as heterotrophy. Heterotrphy shows state of being heterotropic that cannot produce their own food. Both animals and choanoflagellates are heterotrophs. So, it is an incorrect option.

Option (d) is given as movement. This characteristic is not classify animals from choanoflagellates, since both of the organisms are motile. So, it is an incorrect option.

Hence, options (b), (c), and (d) are incorrect.

Answer 12

Conclusion

Thus, it can be concluded the choanoflagellates are distinguished from animals on the basis of multicellarity.

Answer 13

Ch. 33 - Prob. 1TYK Ch. 33 - 2. In a tube-within-a-tube body plan, what is the...Ch. 33 - Prob. 2TYK Ch. 33 - Prob. 3TYK Ch. 33 - Prob. 4TYK Ch. 33 - Prob. 6TYK Ch. 33 - 5. Why is it ecologically significant that animals...Ch. 33 - Prob. 9TYU Ch. 33 - 7. Explain the difference between a diploblast...Ch. 33 - Prob. 12TYU

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Concept explainers

Videos

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Answer to Problem 1TYK

Explanation of Solution

Want to see more full solutions like this?

Chapter 33 Solutions

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Concept explainers

Videos

Introduction: Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.

Answer to Problem 1TYK

Explanation of Solution

Want to see more full solutions like this?

Chapter 33 Solutions

Introduction:

Animals are classified as a monophyletic group, who share a common ancestor. The common animal ancestor was a multicellular organism as known from the data records, such as study of comparative morphology, fossils, comparative development, and comparative genomics.