The interactions among the members of the different species are called interspecific interactions . It can affect the reproduction and survival of the species that engage in them. Biological control agents are used for controlling the pests like weeds, insects, mites, nematodes, and so on in order to generate pest-free yields.

Question

A symbiotic relationship where both of the coexisting species benefit from the interaction is called ________. a. commensalism b. parasitism c. mutualism d. communism

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 45, Problem 14SQ

Summary Introduction

Introduction: The interactions among the members of the different species are called interspecific interactions. It can affect the reproduction and survival of the species that engage in them. Biological control agents are used for controlling the pests like weeds, insects, mites, nematodes, and so on in order to generate pest-free yields.

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A symbiotic relationship where both of the coexisting species benefit from the interaction is called ________. a. commensalism b. parasitism c. mutualism d. communism

Some invasive species carry pathogens or parasites with them. Scientists think this might be one reason why some introduced species become invasive. Carrying pathogens or parasites might make an invading species more successful if the invading pathogen or parasite ___________ a. Selectively infects and kills native competitors b. Dies out shortly after entering the new environment c. Loses its ability to infect all species in the new environment d. Selectively infects and kills the invasive species

Passenger pigeons were driven to extinction________ . a. by introduced pathogens b. by overharvesting c. as a result of global warming d. by competition with introduced birds

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 45, Problem 14SQ

Summary Introduction

Introduction: The interactions among the members of the different species are called interspecific interactions. It can affect the reproduction and survival of the species that engage in them. Biological control agents are used for controlling the pests like weeds, insects, mites, nematodes, and so on in order to generate pest-free yields.

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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 45, Problem 14SQ

Summary Introduction

Introduction: The interactions among the members of the different species are called interspecific interactions. It can affect the reproduction and survival of the species that engage in them. Biological control agents are used for controlling the pests like weeds, insects, mites, nematodes, and so on in order to generate pest-free yields.

Expert Solution & Answer

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See solution

Check out sample textbook 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 45, Problem 14SQ

Summary Introduction