To answer: How dead eggs of Schistosoma can cause damage in a human. Concept introduction: Schistosomiasis is a fatal disease caused by blood flukes of Schistosoma genus. These are one of the common parasites of humans. Symptoms include “swimmer’s itch” when infective larvae burrow into an individual’s skin. These worms migrate throughout the body through the blood and such migration causes no signs or symptoms.

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Answer 1

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 21, Problem 12SA

Summary Introduction

To answer:

How dead eggs of Schistosoma can cause damage in a human.

Concept introduction:

Schistosomiasis is a fatal disease caused by blood flukes of Schistosoma genus. These are one of the common parasites of humans. Symptoms include “swimmer’s itch” when infective larvae burrow into an individual’s skin. These worms migrate throughout the body through the blood and such migration causes no signs or symptoms.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

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 21, Problem 12SA

Summary Introduction

To answer:

How dead eggs of Schistosoma can cause damage in a human.

Concept introduction:

Schistosomiasis is a fatal disease caused by blood flukes of Schistosoma genus. These are one of the common parasites of humans. Symptoms include “swimmer’s itch” when infective larvae burrow into an individual’s skin. These worms migrate throughout the body through the blood and such migration causes no signs or symptoms.

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Check out a sample textbook solution

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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 21, Problem 12SA

Summary Introduction

To answer:

How dead eggs of Schistosoma can cause damage in a human.

Concept introduction:

Schistosomiasis is a fatal disease caused by blood flukes of Schistosoma genus. These are one of the common parasites of humans. Symptoms include “swimmer’s itch” when infective larvae burrow into an individual’s skin. These worms migrate throughout the body through the blood and such migration causes no signs or symptoms.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

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 21, Problem 12SA

Summary Introduction