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unit 9 word search

word searches from 3/23/15 and 3/25/15

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
Created by: 12453006