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biennial weed
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instars
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unit 9 word search
word searches from 3/23/15 and 3/25/15
| Term | Definition |
|---|---|
| biennial weed | a weed that lives for two years |
| instars | a stage in the growth of insects |
| noxious weed | a weed that kills other plants |
| vector | a bacteriophage or plasmid that transfers genetic material into a cell, or from one bacterium to another. |
| nematodes | a round worm that burrows into plants and causes harm |
| insect | a bug with 6 legs and three body parts |
| chemical control | a way to control a pest with chemicals |
| metamorphosis | the transformation of a living creature in multiple life stages |
| causal agent | biological pathogen that causes a disease, such as a virus, parasite, fungus, or bacterium |
| perennial weed | a weed that lives longer than three years |
| hyphae | branching filaments that make up the mycelium of a fungus |
| diseases | an illness caused by a pathogen |
| disease triangle | basic diagram of pathology |
| bacteria | a microscopic living creature |
| annual weed | a weed that only lives for one year |
| biological control | a way to control pests with another living creature |
| pesticide resistance | when a pest species grows resistant to a type of control method |
| cultural control | manipulating the environment to eliminate or reduce pests |
| arachnid | insect with 8 legs (spiders) |
| viruses | a microscopic non-living agent of sickness and disease |
| eradication | to destroy a living creature completely |
| key pest | a pest that is very common for a species of plant |
| quarantine | isolating a plant to prevent the spread of disease or contamination |
| fungi | mushrooms, mold, mildew, etc |
| pathogens | an agent of disease |
| compound | a thing that is composed of two or more separate elements |
| signal words | words that serve to indicate, warn, direct, command,ect |
| net contents | a list of the contents or ingredients of a product |
| carcinogen | a substance that is toxic and can cause death |
| toxicity | the degree to which a substance can damage an organism |
| xylem tissue | The tissue of vascular plants that conducts water and minerals, provides support, and consists of tracheary elements and parenchyma cells |
| insecticides | a chemical used to kill insects |
| phloem tissue | The tissue of vascular plants that conducts food produced by photosynthesis to all parts of the plant and consists of sieve elements, fibers, and parenchyma |
| common name | Brand, generic, or trade name of a substance that is not a chemical name or scientific name |
| symbols | pictures that have a special meaning |
| volatilization | the process whereby a dissolved sample is vaporised |
| drift | be carried slowly by a current of air or water |
| trade name | a name by which something is known in a particular trade or profession |
| element | each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter |
| formulation | the action of creating something |
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