Page 19 - ingilizce

Redworms : A common name for Eisenia fetida and also Lumbricus rubellus. Eisenia fetida is

a common worm used for vermicomposting, although in some parts of North America,
Lumbricus rubellus is more common.

Respire : To exchange oxygen and carbon dioxide to maintain bodily processes.

Secrete : To release a substance that fulfills some function within the organism.

Segments : Numerous disc-shaped portions of an earthworm's body bounded anteriorly and

posteriorly by membranes. People identify earthworm species by counting the number of
segments anterior to the position of structures such as the clitellum, ovaries, or testes.

Segmentation is a characteristic of all annelids.

Species : Basic category of biological classification, characterized by individuals which can

breed together.

Springtail : A small, primitive insect with a turned-under projection on its abdomen which

causes it to spring about. Sprintails are often found in worm bins.

Stress : To produce conditions which cause an organism to experience discomfort.

Subsoil : Mineral bearing soil located beneath humus-containing topsoil.

Ventral : Term for the underneath surface of an earthworm.

Vermicompost : Mixture of partially decomposed organic waste, bedding, worm castings,

cocoons, worms, and associated organisms. As a verb, to carry out composting with worms.

Vermiculture : The raising of earthworms under controlled conditions.

Vibration : A rapid, rhythmic motion back and forth. Earthworms are sensitive to vibration.

Worm bedding : The medium, usually cellulose-based, in which worms are raised in culture,
such as shredded corrugated cartons, newspaper, or leaf mold.

Worm bin : Container designed to accommodate a vermicomposting system.

Worm casting : Undigested material, soil, and bacteria deposited through the anus. Worm

manure.

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