The way by which plants recognize and respond to viral infections. Introduction: Viruses are intracellular parasites that replicate only inside a host. Plants are immobile organisms, so transmission from plant to plant involves vectors such as insects. Plant viruses are commonly made of single-stranded RNA(ssRNA). Few plant viruses have either single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA). RNA silencing is a primary defense mechanism of plants against viral infection.

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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 27.4, Problem 2LO

Summary Introduction

To describe: The way by which plants recognize and respond to viral infections.

Introduction: Viruses are intracellular parasites that replicate only inside a host. Plants are immobile organisms, so transmission from plant to plant involves vectors such as insects. Plant viruses are commonly made of single-stranded RNA(ssRNA). Few plant viruses have either single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA). RNA silencing is a primary defense mechanism of plants against viral infection.

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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 27.4, Problem 2LO

Summary Introduction

To describe: The way by which plants recognize and respond to viral infections.

Introduction: Viruses are intracellular parasites that replicate only inside a host. Plants are immobile organisms, so transmission from plant to plant involves vectors such as insects. Plant viruses are commonly made of single-stranded RNA(ssRNA). Few plant viruses have either single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA). RNA silencing is a primary defense mechanism of plants against viral infection.

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Answer 3

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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 27.4, Problem 2LO

Summary Introduction

To describe: The way by which plants recognize and respond to viral infections.

Introduction: Viruses are intracellular parasites that replicate only inside a host. Plants are immobile organisms, so transmission from plant to plant involves vectors such as insects. Plant viruses are commonly made of single-stranded RNA(ssRNA). Few plant viruses have either single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA). RNA silencing is a primary defense mechanism of plants against viral infection.

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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 27.4, Problem 2LO

Summary Introduction