Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

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Chapter 9, Problem 2TY

Summary Introduction

Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

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Symptoms of viral infections are caused by: (choose all that apply) A. Actions of the virus that result in cell damage or death B. Actions of the immune system that result in cell damage or death C. Changes in a cell's genetics that result in cancer

Which of the following statements seemingly refute the fact that viruses are nonliving? A.They reproduce themselves only inside a host cell. B. They contain no enzymes. C. They can change over time, with the emergence of new strains. D. They cause diseases similar to those caused by bacteria. E. They are composed of protein and nucleic acid.

Which of the following statements correctly describes viruses? Select one: A. They can reproduce by dividing. B. They cannot reproduce without a host cell. C. They have a genome similar to prokaryotic and eukaryotic cells. D. They can carry out their own metabolic activities.

Answer 2

Question

Chapter 9, Problem 2TY

Summary Introduction

Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

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Answer 3

Question

Chapter 9, Problem 2TY

Summary Introduction

Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

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Answer 4

Question

Chapter 9, Problem 2TY

Summary Introduction

Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

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Answer 5

Chapter 9, Problem 2TY

Summary Introduction

Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

Answer 6

Chapter 9, Problem 2TY

Summary Introduction

Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

Answer 7

Chapter 9, Problem 2TY

Summary Introduction

Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

Answer 8

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Answer 11

Ch. 9 - Prob. 1QC Ch. 9 - Prob. 2QC Ch. 9 - Define the term pathogen and give some examples.Ch. 9 - Prob. 2CR Ch. 9 - Prob. 3CR Ch. 9 - Prob. 4CR Ch. 9 - Prob. 5CR Ch. 9 - Describe in general terms the distinction between...Ch. 9 - Describe the concept of an antigen and how it...Ch. 9 - Prob. 8CR

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

Solution Summary: The author explains that viruses require a host cell for reproduction, as they have no organelles of their own. They can be controlled with antibiotics.

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Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

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Chapter 9 Solutions

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

Solution Summary: The author explains that viruses require a host cell for reproduction, as they have no organelles of their own. They can be controlled with antibiotics.

Concept explainers

Videos

Introduction: Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.

Want to see the full answer?

Chapter 9 Solutions

Introduction:

Viruses are very small infection-causing pathogens. They either have a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid), which is surrounded mainly by a protein coat. They are intermediates between living and nonliving organisms.