Answered: Why might farmers and gardeners be…

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter20: The Protists

Section: Chapter Questions

Problem 10SA: A high concentration of oil helps _______ stay afloat and makes them useful in biofuel production....

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Why might farmers and gardeners be concerned about nematodes? A. Some for "tent like" egg cases in trees, then the caterpillars that eat many of the leaves B. Some of they chew on roots, hurting the plants C. Pesticides kill the good nematodes and then the soil gets too compacted D. They are a beneficial natural way of controlling slugs because they parasitize slug eggs

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.

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Nematodes

These invertebrate roundworms may be found in a variety of settings, including marine, freshwater, and terrestrial. They are members of the phylum Nematoda, which contains plant and animal parasites, including humans, as well as bacteria, fungus, amd algae.

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