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Terms 10-19
Term review for second major test
| Term | Definition |
|---|---|
| Vascular Plants | a plant having a specialized conducting system that includes xylem and phloem |
| Combustible | able to catch fire and burn easily |
| Acute Toxicity | can be defined as the adverse effects resulting from a single exposure to a chemical substance or repeated exposures within a short period of time (less than 24 hours), and which also occur within a short period of time following exposure. |
| Asphyxiation | to cause to die or lose consciousness by impairing normal breathing, as by gas or other noxious agents; choke; suffocate; smother |
| Chronic Toxicity | a property of a substance that has toxic effects on a living organism, when that organism is exposed to the substance continuously or repeatedly |
| Fungicide | a chemical that destroys fungus |
| Herbicide | a substance that is toxic to plants and is used to destroy unwanted vegetation |
| Insecticide | a substance used for killing insects |
| pre-emergent | applied before the emergence of a plant from the soil |
| Post-emergent | used to kill weeds after they have germinated |
| Reentry | the minimum amount of time that must pass between the time a pesticide was applied to an area or crop and the time that people can go into that area without protective clothing and equipment |
| Selective Pesticide | kills only certain kinds of plants or animals Example:2, 4-D used for lawn weed control, kills broadleaved plants but does not harm grass |
| Toxicity | The ability of a poison to produce adverse effects |
| Greenhouse | a glass, polycarbonate, or plastic building in which plants are grown that need protection from cold weather |
| Solar Heating | harnessing the light and warmth of the sun, trapping the heat inside the structure to create an environment more conducive to plant growth than the outside |
| Auxins | a plant hormone that causes the elongation of cells in shoots and is involved in regulating plant growth |
| Cytokinins | A plant hormone that promotes cell division |
| Ethylene | a gaseous hormone and it accelerates fruit ripening |
| Gibberellins | a group of plant hormones that stimulate stem elongation, germination, and flowering |
| Humidity | amount of water vapor in the atmosphere |
Created by:
dale33
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