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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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 28.2, Problem 1CR

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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Q8. A researcher wants to study the effectiveness of a pill intended to reduce stomach heartburn in pregnant women. The researcher chooses randomly 400 women to participate in this experiment for 9 months of their pregnancy period. They all need to have the same diet. The researcher designs two groups of 200 participants: One group take the real medication intended to reduce heartburn, while the other group take placebo medication. In this study what are: Independent variable: Dependent variable: Control variable: Experimental group: " Control group: If the participants do not know who is consuming the real pills and who is consuming the sugar pills. This study is It happens that 40% of the participants do not find the treatment helpful and drop out after 6 months. The researcher throws out the data from subjects that drop out. What type of bias is there in this study? If the company who makes the medication funds this research, what type of bias might exist in this research work?

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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 28.2, Problem 1CR

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

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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 28.2, Problem 1CR

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 4

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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 28.2, Problem 1CR

Summary Introduction