Koch’s postulates and design the study using Koch’s postulates to test the hypothesis that chytrid infections are responsible for the frog deaths. Introduction: Koch’s postulates state that the microorganism must be present in all the diseased individuals, but it must be absent in the healthy organism. The table mentioning that the chytrids are responsible for massive die-offs occurring in amphibians is given below: Fungi Known species Absorptive lifestyle Life cycle Relevance Chytrids (common in freshwater) 750 Many decompose the plants by digesting the cellulose. Mutualistic chytrids reside in the guts of deer, cows, and other mammals and help in the digestion of plant material. Parasitic chytrids infect many plant and animal species These are the only fungi that produce motile cells—both their gametes and spores through flagella. Most exhibit alteration of generations. Some are parasites of mosquitos. Batrachochytrium dendrobatidis is mainly responsible for the decline in the populations of amphibians worldwide.

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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 29, Problem 9TYPSS

Summary Introduction

To review:

Koch’s postulates and design the study using Koch’s postulates to test the hypothesis that chytrid infections are responsible for the frog deaths.

Introduction:

Koch’s postulates state that the microorganism must be present in all the diseased individuals, but it must be absent in the healthy organism. The table mentioning that the chytrids are responsible for massive die-offs occurring in amphibians is given below:

Fungi Known species Absorptive lifestyle Life cycle Relevance

Chytrids (common in freshwater) 750
Many decompose the plants by digesting the cellulose.

Mutualistic chytrids reside in the guts of deer, cows, and other mammals and help in the digestion of plant material.

Parasitic chytrids infect many plant and animal species

These are the only fungi that produce motile cells—both their gametes and spores through flagella.

Most exhibit alteration of generations.

Some are parasites of mosquitos.

Batrachochytrium dendrobatidis is mainly responsible for the decline in the populations of amphibians worldwide.

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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 29, Problem 9TYPSS

Summary Introduction

To review:

Koch’s postulates and design the study using Koch’s postulates to test the hypothesis that chytrid infections are responsible for the frog deaths.

Introduction:

Koch’s postulates state that the microorganism must be present in all the diseased individuals, but it must be absent in the healthy organism. The table mentioning that the chytrids are responsible for massive die-offs occurring in amphibians is given below:

Fungi Known species Absorptive lifestyle Life cycle Relevance

Chytrids (common in freshwater) 750
Many decompose the plants by digesting the cellulose.

Mutualistic chytrids reside in the guts of deer, cows, and other mammals and help in the digestion of plant material.

Parasitic chytrids infect many plant and animal species

These are the only fungi that produce motile cells—both their gametes and spores through flagella.

Most exhibit alteration of generations.

Some are parasites of mosquitos.

Batrachochytrium dendrobatidis is mainly responsible for the decline in the populations of amphibians worldwide.

Expert Solution & Answer

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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 29, Problem 9TYPSS

Summary Introduction

To review:

Koch’s postulates and design the study using Koch’s postulates to test the hypothesis that chytrid infections are responsible for the frog deaths.

Introduction:

Koch’s postulates state that the microorganism must be present in all the diseased individuals, but it must be absent in the healthy organism. The table mentioning that the chytrids are responsible for massive die-offs occurring in amphibians is given below:

Fungi Known species Absorptive lifestyle Life cycle Relevance

Chytrids (common in freshwater) 750
Many decompose the plants by digesting the cellulose.

Mutualistic chytrids reside in the guts of deer, cows, and other mammals and help in the digestion of plant material.

Parasitic chytrids infect many plant and animal species

These are the only fungi that produce motile cells—both their gametes and spores through flagella.

Most exhibit alteration of generations.

Some are parasites of mosquitos.

Batrachochytrium dendrobatidis is mainly responsible for the decline in the populations of amphibians worldwide.

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 29, Problem 9TYPSS

Summary Introduction