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| the attraction of like particles or molecules. |
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| a symbiotic relationship in which one species benefits and the impact on other is neutral. |
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| an assemblage of species that share an ecosystem. |
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| refers to an insects eye that is comprised of several to many ommatidia. |
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| the movement of the Earth's continents on massive ocean floor rocks. |
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| within an experiment, a standard to which treatments are compared. |
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| the morphological similarity of unrelated organisms that live in similar climatic environments. |
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| in the human eye, the outermost protective layer, which begins to focus light; in insects, the outermost layer of an ommatidium, which functions to protect it. |
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| secretory appendages on the end of the abdomen in aphids. |
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| hook-like structures on the end of the prolegs in immature Lepidoptera, which further help caterpillars cling to surfaces. |
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| part of the insect gut which functions to store food. |
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| secretive or hidden. Referring to the ability of some insects to blend into their envioronment because of camouflaged coloration or shape. |
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| lies just beneath the cornea and helps to focus light onto the retinula cells. |
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| the outer layer of the exoskeleton, comprised primarily of chitin and proteins, and topped with wax. |
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| information, often in the form of numbers recorded from an experiment. |
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| a chemical discovered to have insecticidal properties in 1939, and widely used during the next three decades around the world. |
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| an organism that feeds on dead plant or animal matter, or animal waste products. |
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| the accumulation of one degree of heat above a certain threshold for a 24 hour period. |
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| a belief that very small organisms are living on or under the skin. |
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| the part of the neuron that receives nerve impulses from the terminal arborization of an adjacent neuron. |
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| Deoxyribonucleic acid (DNA) |
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| a molecule consisting of many units of nucleotides, organized into structures called chromosomes. |
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| a state of arrested development, which can take place in any insect stage. |
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| the metabolic system responsible for the breakdown and processing of food. |
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| having two sets of chromosomes. |
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| the more advanced members of this order, characterized by bristle-like antennae and sponging mouthparts. |
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| the more primitive members of this order, characterized by multisegmented antennae and long legs. |
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| primitive method of flying in which muscles are attached to the bases of the wings. |
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| referring to an allele, the expression of which masks a recessive allele. |
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| a male honeybee, whose sole purpose is to engage in a nuptial flight and mate with a virgin queen. |
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| high frequency sounds that organisms make in order to locate objects. |
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| specifically defines what an organism needs to survive, that is, the sum of the conditions (temperature, pH, moisture, etc.) and resources (food, water, etc.) under which it can live. |
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| the study of the interactions between an organism and its environment. |
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| an assemblage of species plus its non living surroundings. |
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| a sclerotized wing cover found in the Coleoptera. |
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| the developmental stage between fertilization and the immature stage. |
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| the metabolic system of hormones. |
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| a parasite which lives within its host (see Parasite). |
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| the internal framework of vertebrates. |
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| a persistent and irrational fear of insects or spiders. |
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| the layer of cells above the basement membrane; among its functions is to secrete the cuticle. |
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| the tube-like, non-musculated part of the insect gut. |
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| the protective outer covering of arthropods, consisting of basement membrane, epidermis and cuticle. Also known as the integument. |
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| a method used to test a hypothesis, which includes treatments, replications and a control. |
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| the distal end of a chelicera in the Araneae, from where poison is injected into prey. |
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