The unusual characteristics about viruses, due to which sometimes they are considered as living things and sometimes as nonliving entities. Introduction: Viruses are the most dangerous infectious agent. It is very simple in structure. It consists of small pieces of genetic material that is either RNA (ribonucleic acid) or DNA (deoxyribonucleic acid). Its genetic material is enclosed in a protein coat. It can cause different types of severe illness such as AIDS (acquired immunodeficiency virus).

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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 9, Problem 2CR

Summary Introduction

To review:

The unusual characteristics about viruses, due to which sometimes they are considered as living things and sometimes as nonliving entities.

Introduction:

Viruses are the most dangerous infectious agent. It is very simple in structure. It consists of small pieces of genetic material that is either RNA (ribonucleic acid) or DNA (deoxyribonucleic acid). Its genetic material is enclosed in a protein coat. It can cause different types of severe illness such as AIDS (acquired immunodeficiency virus).

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Answer 2

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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 9, Problem 2CR

Summary Introduction

To review:

The unusual characteristics about viruses, due to which sometimes they are considered as living things and sometimes as nonliving entities.

Introduction:

Viruses are the most dangerous infectious agent. It is very simple in structure. It consists of small pieces of genetic material that is either RNA (ribonucleic acid) or DNA (deoxyribonucleic acid). Its genetic material is enclosed in a protein coat. It can cause different types of severe illness such as AIDS (acquired immunodeficiency virus).

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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 9, Problem 2CR

Summary Introduction

To review:

The unusual characteristics about viruses, due to which sometimes they are considered as living things and sometimes as nonliving entities.

Introduction:

Viruses are the most dangerous infectious agent. It is very simple in structure. It consists of small pieces of genetic material that is either RNA (ribonucleic acid) or DNA (deoxyribonucleic acid). Its genetic material is enclosed in a protein coat. It can cause different types of severe illness such as AIDS (acquired immunodeficiency virus).

Expert Solution & Answer

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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 9, Problem 2CR

Summary Introduction