The most common type of the prokaryotes is bacteria. They are found in every existing environment on the earth and although they are small in size but their biomass exceeds of animals and plants combined. Bacteria are not different from other organisms in terms of nutrition. Most are aerobic, facultative anaerobes and some are also obligate anaerobes.

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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 20, Problem 12A

Summary Introduction

Introduction:

The most common type of the prokaryotes is bacteria. They are found in every existing environment on the earth and although they are small in size but their biomass exceeds of animals and plants combined. Bacteria are not different from other organisms in terms of nutrition. Most are aerobic, facultative anaerobes and some are also obligate anaerobes.

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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 20, Problem 12A

Summary Introduction

Introduction:

The most common type of the prokaryotes is bacteria. They are found in every existing environment on the earth and although they are small in size but their biomass exceeds of animals and plants combined. Bacteria are not different from other organisms in terms of nutrition. Most are aerobic, facultative anaerobes and some are also obligate anaerobes.

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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 20, Problem 12A

Summary Introduction

Introduction:

The most common type of the prokaryotes is bacteria. They are found in every existing environment on the earth and although they are small in size but their biomass exceeds of animals and plants combined. Bacteria are not different from other organisms in terms of nutrition. Most are aerobic, facultative anaerobes and some are also obligate anaerobes.

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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 20, Problem 12A

Summary Introduction