The life-history attribute that was likely to be present in the common ancestor of the apicomplexans but, not in other alveolates. Introduction: The unicellular organisms with alveoli-like sacs beneath their cell membranes are called as alveolates . Alveolate clades mainly include the parasitic apicomplexans, marine dinoflagellates, and the highly motile diverse cilates. The apicomplexans generally contain a mass of organelles on the apical end of the cell which forms an apical complex. Such apical complex helps these organisms to enter its target cells in a host.

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Answer 1

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Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 26, Problem 1Q

Summary Introduction

To review:

The life-history attribute that was likely to be present in the common ancestor of the apicomplexans but, not in other alveolates.

Introduction:

The unicellular organisms with alveoli-like sacs beneath their cell membranes are called as alveolates. Alveolate clades mainly include the parasitic apicomplexans, marine dinoflagellates, and the highly motile diverse cilates. The apicomplexans generally contain a mass of organelles on the apical end of the cell which forms an apical complex. Such apical complex helps these organisms to enter its target cells in a host.

Expert Solution & Answer

Explanation of Solution

Life: The Science of Biology, Chapter 26, Problem 1Q

Apicomplexans mainly constitute genus including Plasmodium, Theileria, and Toxoplasma. All these organisms commonly have an exclusively parasitic lifestyle. Thus, it is likely to be a characteristic feature of their common ancestor as well.

It can also be noticed that the host of each of the apicomplexans is a mammal, though it is relatively different from the host of each other. Hence, it is justified to claim that the common ancestor of apicomplexans likely had a mammalian host.

Conclusion

Therefore, it can be concluded that unlike other alveolates, parasitic lifestyle and mammalian host are suitably appropriate for the common ancestor of apicomplexans.

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Answer 2

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 26, Problem 1Q

Summary Introduction

To review:

The life-history attribute that was likely to be present in the common ancestor of the apicomplexans but, not in other alveolates.

Introduction:

The unicellular organisms with alveoli-like sacs beneath their cell membranes are called as alveolates. Alveolate clades mainly include the parasitic apicomplexans, marine dinoflagellates, and the highly motile diverse cilates. The apicomplexans generally contain a mass of organelles on the apical end of the cell which forms an apical complex. Such apical complex helps these organisms to enter its target cells in a host.

Expert Solution & Answer

Explanation of Solution

Life: The Science of Biology, Chapter 26, Problem 1Q

Apicomplexans mainly constitute genus including Plasmodium, Theileria, and Toxoplasma. All these organisms commonly have an exclusively parasitic lifestyle. Thus, it is likely to be a characteristic feature of their common ancestor as well.

It can also be noticed that the host of each of the apicomplexans is a mammal, though it is relatively different from the host of each other. Hence, it is justified to claim that the common ancestor of apicomplexans likely had a mammalian host.

Conclusion

Therefore, it can be concluded that unlike other alveolates, parasitic lifestyle and mammalian host are suitably appropriate for the common ancestor of apicomplexans.

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Answer 3

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 26, Problem 1Q

Summary Introduction

To review:

The life-history attribute that was likely to be present in the common ancestor of the apicomplexans but, not in other alveolates.

Introduction:

The unicellular organisms with alveoli-like sacs beneath their cell membranes are called as alveolates. Alveolate clades mainly include the parasitic apicomplexans, marine dinoflagellates, and the highly motile diverse cilates. The apicomplexans generally contain a mass of organelles on the apical end of the cell which forms an apical complex. Such apical complex helps these organisms to enter its target cells in a host.

Expert Solution & Answer

Explanation of Solution

Life: The Science of Biology, Chapter 26, Problem 1Q

Apicomplexans mainly constitute genus including Plasmodium, Theileria, and Toxoplasma. All these organisms commonly have an exclusively parasitic lifestyle. Thus, it is likely to be a characteristic feature of their common ancestor as well.

It can also be noticed that the host of each of the apicomplexans is a mammal, though it is relatively different from the host of each other. Hence, it is justified to claim that the common ancestor of apicomplexans likely had a mammalian host.

Conclusion

Therefore, it can be concluded that unlike other alveolates, parasitic lifestyle and mammalian host are suitably appropriate for the common ancestor of apicomplexans.

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

Answer 4

Question

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

Chapter 26, Problem 1Q

Summary Introduction

To review:

The life-history attribute that was likely to be present in the common ancestor of the apicomplexans but, not in other alveolates.

Introduction:

The unicellular organisms with alveoli-like sacs beneath their cell membranes are called as alveolates. Alveolate clades mainly include the parasitic apicomplexans, marine dinoflagellates, and the highly motile diverse cilates. The apicomplexans generally contain a mass of organelles on the apical end of the cell which forms an apical complex. Such apical complex helps these organisms to enter its target cells in a host.

Expert Solution & Answer

Explanation of Solution

Life: The Science of Biology, Chapter 26, Problem 1Q

Apicomplexans mainly constitute genus including Plasmodium, Theileria, and Toxoplasma. All these organisms commonly have an exclusively parasitic lifestyle. Thus, it is likely to be a characteristic feature of their common ancestor as well.

It can also be noticed that the host of each of the apicomplexans is a mammal, though it is relatively different from the host of each other. Hence, it is justified to claim that the common ancestor of apicomplexans likely had a mammalian host.

Conclusion

Therefore, it can be concluded that unlike other alveolates, parasitic lifestyle and mammalian host are suitably appropriate for the common ancestor of apicomplexans.

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 26, Problem 1Q

Summary Introduction

To review:

The life-history attribute that was likely to be present in the common ancestor of the apicomplexans but, not in other alveolates.

Introduction:

The unicellular organisms with alveoli-like sacs beneath their cell membranes are called as alveolates. Alveolate clades mainly include the parasitic apicomplexans, marine dinoflagellates, and the highly motile diverse cilates. The apicomplexans generally contain a mass of organelles on the apical end of the cell which forms an apical complex. Such apical complex helps these organisms to enter its target cells in a host.

Expert Solution & Answer

Explanation of Solution

Life: The Science of Biology, Chapter 26, Problem 1Q

Apicomplexans mainly constitute genus including Plasmodium, Theileria, and Toxoplasma. All these organisms commonly have an exclusively parasitic lifestyle. Thus, it is likely to be a characteristic feature of their common ancestor as well.

It can also be noticed that the host of each of the apicomplexans is a mammal, though it is relatively different from the host of each other. Hence, it is justified to claim that the common ancestor of apicomplexans likely had a mammalian host.

Conclusion

Therefore, it can be concluded that unlike other alveolates, parasitic lifestyle and mammalian host are suitably appropriate for the common ancestor of apicomplexans.

Answer 6

Chapter 26, Problem 1Q

Summary Introduction

To review:

The life-history attribute that was likely to be present in the common ancestor of the apicomplexans but, not in other alveolates.

Introduction:

The unicellular organisms with alveoli-like sacs beneath their cell membranes are called as alveolates. Alveolate clades mainly include the parasitic apicomplexans, marine dinoflagellates, and the highly motile diverse cilates. The apicomplexans generally contain a mass of organelles on the apical end of the cell which forms an apical complex. Such apical complex helps these organisms to enter its target cells in a host.

Expert Solution & Answer

Explanation of Solution

Life: The Science of Biology, Chapter 26, Problem 1Q

Apicomplexans mainly constitute genus including Plasmodium, Theileria, and Toxoplasma. All these organisms commonly have an exclusively parasitic lifestyle. Thus, it is likely to be a characteristic feature of their common ancestor as well.

It can also be noticed that the host of each of the apicomplexans is a mammal, though it is relatively different from the host of each other. Hence, it is justified to claim that the common ancestor of apicomplexans likely had a mammalian host.

Conclusion

Therefore, it can be concluded that unlike other alveolates, parasitic lifestyle and mammalian host are suitably appropriate for the common ancestor of apicomplexans.

Answer 7

Chapter 26, Problem 1Q

Summary Introduction

To review:

The life-history attribute that was likely to be present in the common ancestor of the apicomplexans but, not in other alveolates.

Introduction:

The unicellular organisms with alveoli-like sacs beneath their cell membranes are called as alveolates. Alveolate clades mainly include the parasitic apicomplexans, marine dinoflagellates, and the highly motile diverse cilates. The apicomplexans generally contain a mass of organelles on the apical end of the cell which forms an apical complex. Such apical complex helps these organisms to enter its target cells in a host.

Answer 8

Expert Solution & Answer

Explanation of Solution

Life: The Science of Biology, Chapter 26, Problem 1Q

Apicomplexans mainly constitute genus including Plasmodium, Theileria, and Toxoplasma. All these organisms commonly have an exclusively parasitic lifestyle. Thus, it is likely to be a characteristic feature of their common ancestor as well.

It can also be noticed that the host of each of the apicomplexans is a mammal, though it is relatively different from the host of each other. Hence, it is justified to claim that the common ancestor of apicomplexans likely had a mammalian host.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

Therefore, it can be concluded that unlike other alveolates, parasitic lifestyle and mammalian host are suitably appropriate for the common ancestor of apicomplexans.

Answer 12

Ch. 26.1 - Prob. 1R Ch. 26.1 - Prob. 2R Ch. 26.1 - Prob. 3R Ch. 26.1 - Prob. 4R Ch. 26.1 - Prob. 5R Ch. 26.2 - Prob. 1R Ch. 26.2 - Prob. 2R Ch. 26.2 - Prob. 3R Ch. 26.3 - Prob. 1R Ch. 26.3 - Prob. 2R

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