The mass of virions in the Pacific Ocean. Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

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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 5S

Summary Introduction

To determine: The mass of virions in the Pacific Ocean.

Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

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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 26, Problem 5S

Summary Introduction

To determine: The mass of virions in the Pacific Ocean.

Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

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Check out a sample textbook solution

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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 26, Problem 5S

Summary Introduction

To determine: The mass of virions in the Pacific Ocean.

Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

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Check out a sample textbook solution

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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 26, Problem 5S

Summary Introduction