Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

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Answer 1

Question

Chapter 28, Problem 1TY

Summary Introduction

Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Expert Solution & Answer

Answer to Problem 1TY

Correct answer: Choanomonada can be used to study the evolution of cell-to-cell signaling mechanism in animal cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Choanoflagellates, also known as Choanomonada, are eukaryotic organisms. These organisms are believed to be the species that have closest association with the multicellular organisms (especially animals). Choanomonada and animals have a similar cell-to-cell signaling mechanism. Therefore, Choanomonada can be used to study the evolution of animal-specific cell-to-cell signaling system.

Option c. is given as “Choanomonada”.

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. Hence, the correct answer is option c.

Reasons for incorrect answer:

Option a. is given as, “Rhodophyta”.

Rhodophyta is also known as red algae and they are able to perform photosynthesis. Photosynthesis is a process observed in plants and not in animals. This indicates that Rhodophyta represents a close association with plants. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option a. is incorrect.

Option b. is given as, “Excavata”.

Excavata cannot be used to study the evolution of cell-to-cell signaling mechanism in animal cells. This is because, they include both photosynthetic and heterotrophic organisms. They do not resemble animal cells as animals do not perform photosynthesis. Hence, option b. is incorrect.

Option d. is given as, “Radiolaria”.

Radiolarian lives in an aquatic habitat and they are heterotrophic in nature. They cannot be used to study the evolution of cell-to-cell signaling system as they do not share similarities with the animal cells. Hence, option d. is incorrect.

Option e. is given as, “Chlorophyta”.

Chlorophyta is also referred to as green algae. They contain the same photosynthetic pigments that are present in the plants. Chlorophyta performs photosynthesis and shows a close association with plants and not animals. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. This is because, they show a close association with animal cells.

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After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.) After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.) Data Table 1Stage Totals PercentInterphase Mitosis: Prophase Metaphase Anaphase Telophase Cytokinesis Totals 100 100% To find the length of time whitefish blastula cells spend in each stage, multiply the percent (recorded as a decimal, in other words take the percent number and divide by 100) by 24 hours. (Example: If percent is 20%, then Time in Hours = .2 * 24 = 4.8) Record your data in Data…

Answer 2

Question

Chapter 28, Problem 1TY

Summary Introduction

Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Expert Solution & Answer

Answer to Problem 1TY

Correct answer: Choanomonada can be used to study the evolution of cell-to-cell signaling mechanism in animal cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Choanoflagellates, also known as Choanomonada, are eukaryotic organisms. These organisms are believed to be the species that have closest association with the multicellular organisms (especially animals). Choanomonada and animals have a similar cell-to-cell signaling mechanism. Therefore, Choanomonada can be used to study the evolution of animal-specific cell-to-cell signaling system.

Option c. is given as “Choanomonada”.

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. Hence, the correct answer is option c.

Reasons for incorrect answer:

Option a. is given as, “Rhodophyta”.

Rhodophyta is also known as red algae and they are able to perform photosynthesis. Photosynthesis is a process observed in plants and not in animals. This indicates that Rhodophyta represents a close association with plants. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option a. is incorrect.

Option b. is given as, “Excavata”.

Excavata cannot be used to study the evolution of cell-to-cell signaling mechanism in animal cells. This is because, they include both photosynthetic and heterotrophic organisms. They do not resemble animal cells as animals do not perform photosynthesis. Hence, option b. is incorrect.

Option d. is given as, “Radiolaria”.

Radiolarian lives in an aquatic habitat and they are heterotrophic in nature. They cannot be used to study the evolution of cell-to-cell signaling system as they do not share similarities with the animal cells. Hence, option d. is incorrect.

Option e. is given as, “Chlorophyta”.

Chlorophyta is also referred to as green algae. They contain the same photosynthetic pigments that are present in the plants. Chlorophyta performs photosynthesis and shows a close association with plants and not animals. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. This is because, they show a close association with animal cells.

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Answer 3

Question

Chapter 28, Problem 1TY

Summary Introduction

Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Expert Solution & Answer

Answer to Problem 1TY

Correct answer: Choanomonada can be used to study the evolution of cell-to-cell signaling mechanism in animal cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Choanoflagellates, also known as Choanomonada, are eukaryotic organisms. These organisms are believed to be the species that have closest association with the multicellular organisms (especially animals). Choanomonada and animals have a similar cell-to-cell signaling mechanism. Therefore, Choanomonada can be used to study the evolution of animal-specific cell-to-cell signaling system.

Option c. is given as “Choanomonada”.

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. Hence, the correct answer is option c.

Reasons for incorrect answer:

Option a. is given as, “Rhodophyta”.

Rhodophyta is also known as red algae and they are able to perform photosynthesis. Photosynthesis is a process observed in plants and not in animals. This indicates that Rhodophyta represents a close association with plants. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option a. is incorrect.

Option b. is given as, “Excavata”.

Excavata cannot be used to study the evolution of cell-to-cell signaling mechanism in animal cells. This is because, they include both photosynthetic and heterotrophic organisms. They do not resemble animal cells as animals do not perform photosynthesis. Hence, option b. is incorrect.

Option d. is given as, “Radiolaria”.

Radiolarian lives in an aquatic habitat and they are heterotrophic in nature. They cannot be used to study the evolution of cell-to-cell signaling system as they do not share similarities with the animal cells. Hence, option d. is incorrect.

Option e. is given as, “Chlorophyta”.

Chlorophyta is also referred to as green algae. They contain the same photosynthetic pigments that are present in the plants. Chlorophyta performs photosynthesis and shows a close association with plants and not animals. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. This is because, they show a close association with animal cells.

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Answer 4

Question

Chapter 28, Problem 1TY

Summary Introduction

Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Expert Solution & Answer

Answer to Problem 1TY

Correct answer: Choanomonada can be used to study the evolution of cell-to-cell signaling mechanism in animal cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Choanoflagellates, also known as Choanomonada, are eukaryotic organisms. These organisms are believed to be the species that have closest association with the multicellular organisms (especially animals). Choanomonada and animals have a similar cell-to-cell signaling mechanism. Therefore, Choanomonada can be used to study the evolution of animal-specific cell-to-cell signaling system.

Option c. is given as “Choanomonada”.

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. Hence, the correct answer is option c.

Reasons for incorrect answer:

Option a. is given as, “Rhodophyta”.

Rhodophyta is also known as red algae and they are able to perform photosynthesis. Photosynthesis is a process observed in plants and not in animals. This indicates that Rhodophyta represents a close association with plants. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option a. is incorrect.

Option b. is given as, “Excavata”.

Excavata cannot be used to study the evolution of cell-to-cell signaling mechanism in animal cells. This is because, they include both photosynthetic and heterotrophic organisms. They do not resemble animal cells as animals do not perform photosynthesis. Hence, option b. is incorrect.

Option d. is given as, “Radiolaria”.

Radiolarian lives in an aquatic habitat and they are heterotrophic in nature. They cannot be used to study the evolution of cell-to-cell signaling system as they do not share similarities with the animal cells. Hence, option d. is incorrect.

Option e. is given as, “Chlorophyta”.

Chlorophyta is also referred to as green algae. They contain the same photosynthetic pigments that are present in the plants. Chlorophyta performs photosynthesis and shows a close association with plants and not animals. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. This is because, they show a close association with animal cells.

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

Chapter 28, Problem 1TY

Summary Introduction

Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Expert Solution & Answer

Answer to Problem 1TY

Correct answer: Choanomonada can be used to study the evolution of cell-to-cell signaling mechanism in animal cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Choanoflagellates, also known as Choanomonada, are eukaryotic organisms. These organisms are believed to be the species that have closest association with the multicellular organisms (especially animals). Choanomonada and animals have a similar cell-to-cell signaling mechanism. Therefore, Choanomonada can be used to study the evolution of animal-specific cell-to-cell signaling system.

Option c. is given as “Choanomonada”.

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. Hence, the correct answer is option c.

Reasons for incorrect answer:

Option a. is given as, “Rhodophyta”.

Rhodophyta is also known as red algae and they are able to perform photosynthesis. Photosynthesis is a process observed in plants and not in animals. This indicates that Rhodophyta represents a close association with plants. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option a. is incorrect.

Option b. is given as, “Excavata”.

Excavata cannot be used to study the evolution of cell-to-cell signaling mechanism in animal cells. This is because, they include both photosynthetic and heterotrophic organisms. They do not resemble animal cells as animals do not perform photosynthesis. Hence, option b. is incorrect.

Option d. is given as, “Radiolaria”.

Radiolarian lives in an aquatic habitat and they are heterotrophic in nature. They cannot be used to study the evolution of cell-to-cell signaling system as they do not share similarities with the animal cells. Hence, option d. is incorrect.

Option e. is given as, “Chlorophyta”.

Chlorophyta is also referred to as green algae. They contain the same photosynthetic pigments that are present in the plants. Chlorophyta performs photosynthesis and shows a close association with plants and not animals. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. This is because, they show a close association with animal cells.

Answer 6

Chapter 28, Problem 1TY

Summary Introduction

Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Expert Solution & Answer

Answer to Problem 1TY

Correct answer: Choanomonada can be used to study the evolution of cell-to-cell signaling mechanism in animal cells. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Choanoflagellates, also known as Choanomonada, are eukaryotic organisms. These organisms are believed to be the species that have closest association with the multicellular organisms (especially animals). Choanomonada and animals have a similar cell-to-cell signaling mechanism. Therefore, Choanomonada can be used to study the evolution of animal-specific cell-to-cell signaling system.

Option c. is given as “Choanomonada”.

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. Hence, the correct answer is option c.

Reasons for incorrect answer:

Option a. is given as, “Rhodophyta”.

Rhodophyta is also known as red algae and they are able to perform photosynthesis. Photosynthesis is a process observed in plants and not in animals. This indicates that Rhodophyta represents a close association with plants. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option a. is incorrect.

Option b. is given as, “Excavata”.

Excavata cannot be used to study the evolution of cell-to-cell signaling mechanism in animal cells. This is because, they include both photosynthetic and heterotrophic organisms. They do not resemble animal cells as animals do not perform photosynthesis. Hence, option b. is incorrect.

Option d. is given as, “Radiolaria”.

Radiolarian lives in an aquatic habitat and they are heterotrophic in nature. They cannot be used to study the evolution of cell-to-cell signaling system as they do not share similarities with the animal cells. Hence, option d. is incorrect.

Option e. is given as, “Chlorophyta”.

Chlorophyta is also referred to as green algae. They contain the same photosynthetic pigments that are present in the plants. Chlorophyta performs photosynthesis and shows a close association with plants and not animals. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. This is because, they show a close association with animal cells.

Answer 7

Chapter 28, Problem 1TY

Summary Introduction

Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Answer 8

Expert Solution & Answer

Answer to Problem 1TY

Correct answer: Choanomonada can be used to study the evolution of cell-to-cell signaling mechanism in animal cells. Hence, the correct answer is option c.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Reason for correct answer:

Choanoflagellates, also known as Choanomonada, are eukaryotic organisms. These organisms are believed to be the species that have closest association with the multicellular organisms (especially animals). Choanomonada and animals have a similar cell-to-cell signaling mechanism. Therefore, Choanomonada can be used to study the evolution of animal-specific cell-to-cell signaling system.

Option c. is given as “Choanomonada”.

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. Hence, the correct answer is option c.

Reasons for incorrect answer:

Option a. is given as, “Rhodophyta”.

Rhodophyta is also known as red algae and they are able to perform photosynthesis. Photosynthesis is a process observed in plants and not in animals. This indicates that Rhodophyta represents a close association with plants. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option a. is incorrect.

Option b. is given as, “Excavata”.

Excavata cannot be used to study the evolution of cell-to-cell signaling mechanism in animal cells. This is because, they include both photosynthetic and heterotrophic organisms. They do not resemble animal cells as animals do not perform photosynthesis. Hence, option b. is incorrect.

Option d. is given as, “Radiolaria”.

Radiolarian lives in an aquatic habitat and they are heterotrophic in nature. They cannot be used to study the evolution of cell-to-cell signaling system as they do not share similarities with the animal cells. Hence, option d. is incorrect.

Option e. is given as, “Chlorophyta”.

Chlorophyta is also referred to as green algae. They contain the same photosynthetic pigments that are present in the plants. Chlorophyta performs photosynthesis and shows a close association with plants and not animals. They cannot be used to study the animal-specific cell-to-cell signaling system. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Answer 12

Conclusion

The group that can be used to study the evolution of animal-specific cell-to-cell signaling mechanism is Choanomonada. This is because, they show a close association with animal cells.

Answer 13

Ch. 28.1 - An Introduction to Protists Core Skill:...Ch. 28.2 - Prob. 1CC Ch. 28.2 - Evolution and Relationships Concept Check: How do...Ch. 28.2 - Evolution and Relationships Concept Check: How do...Ch. 28.2 - Prob. 4CC Ch. 28.2 - Prob. 5CC Ch. 28.3 - Prob. 1EQ Ch. 28.3 - Prob. 2EQ Ch. 28.4 - Prob. 1CC Ch. 28.4 - Prob. 2CC

Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

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Introduction: Cell signaling is one of the important features observed in the animal cell. The animal cells communicate with each other by the mechanism of direct cell-to-cell contact. Scientists discovered that the multicellular animal cells have evolved from an ancient unicellular organism.

Answer to Problem 1TY

Explanation of Solution

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Chapter 28 Solutions