Infectious diseases are disorders caused by microorganisms like bacteria, fungi , viruses, and parasites. Numerous microorganisms survive inside and outside of the human body. They are usually non-pathogenic or even helpful. Under certain situations, certain microorganisms may cause disease in their host. Malaria, hepatitis, dengue, tuberculosis, and AIDS (acquired human immune deficiency diseases) are some of the most infectious diseases that affect humans.

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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, Problem 2RQ

Summary Introduction

Infectious diseases are disorders caused by microorganisms like bacteria, fungi, viruses, and parasites. Numerous microorganisms survive inside and outside of the human body. They are usually non-pathogenic or even helpful. Under certain situations, certain microorganisms may cause disease in their host. Malaria, hepatitis, dengue, tuberculosis, and AIDS (acquired human immune deficiency diseases) are some of the most infectious diseases that affect humans.

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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 27, Problem 2RQ

Summary Introduction

Infectious diseases are disorders caused by microorganisms like bacteria, fungi, viruses, and parasites. Numerous microorganisms survive inside and outside of the human body. They are usually non-pathogenic or even helpful. Under certain situations, certain microorganisms may cause disease in their host. Malaria, hepatitis, dengue, tuberculosis, and AIDS (acquired human immune deficiency diseases) are some of the most infectious diseases that affect humans.

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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 27, Problem 2RQ

Summary Introduction

Infectious diseases are disorders caused by microorganisms like bacteria, fungi, viruses, and parasites. Numerous microorganisms survive inside and outside of the human body. They are usually non-pathogenic or even helpful. Under certain situations, certain microorganisms may cause disease in their host. Malaria, hepatitis, dengue, tuberculosis, and AIDS (acquired human immune deficiency diseases) are some of the most infectious diseases that affect humans.

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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 27, Problem 2RQ

Summary Introduction