Human diseases are the condition which causes pain, dysfunction and health problems. The study of the diseases is called as the pathology. Infection is caused by the agents like a virus, bacteria, and parasitic round worms. Infectious disease is otherwise called as a communicable disease.

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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 23, Problem 13MC

Summary Introduction

Introduction:

Human diseases are the condition which causes pain, dysfunction and health problems. The study of the diseases is called as the pathology. Infection is caused by the agents like a virus, bacteria, and parasitic round worms. Infectious disease is otherwise called as a communicable disease.

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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 23, Problem 13MC

Summary Introduction

Introduction:

Human diseases are the condition which causes pain, dysfunction and health problems. The study of the diseases is called as the pathology. Infection is caused by the agents like a virus, bacteria, and parasitic round worms. Infectious disease is otherwise called as a communicable disease.

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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 23, Problem 13MC

Summary Introduction

Introduction:

Human diseases are the condition which causes pain, dysfunction and health problems. The study of the diseases is called as the pathology. Infection is caused by the agents like a virus, bacteria, and parasitic round worms. Infectious disease is otherwise called as a communicable disease.

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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 23, Problem 13MC

Summary Introduction