The mass of virions in the Pacific Ocean. Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

Question

Want to see the full answer?

Answer 1

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 26, Problem 5S

Summary Introduction

To determine: The mass of virions in the Pacific Ocean.

Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

What are functions of cuboidal cells in the kidney? Select all that apply. Concentration of gases Dilution of chemicals Secretion of molecules Nutrition to tissues Support of tissues Absorption of molecules

question1 In plants, epithelial tissue is only found as the outermost cell layer and acts as a barrier. In humans, epithelial tissue is found inside the body as well as on the surface. What function(s) does/do epithelial tissue carry out in humans? Select all that apply. Waste storage Filtration Oxygen transport Protection Diffusion Osmosis Absorption

What words best describes this organism? a. Unicellular/nonmotile Ob. unicellular/motile c. colonial/nonmotile d. colonial/motile e. multicelluar O f. siphonous g. none of these

Answer 2

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 26, Problem 5S

Summary Introduction

To determine: The mass of virions in the Pacific Ocean.

Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

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 26, Problem 5S

Summary Introduction

To determine: The mass of virions in the Pacific Ocean.

Introduction: Viruses can be defined as acellular organisms that are obligate intracellular parasites. Viruses lack any cellular organelles but have only genetic material and protein-lipid core. These organisms cannot replicate by themselves, so they require a host cellular machinery to reproduce.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

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 26, Problem 5S

Summary Introduction