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23 Cards in this Set
- Front
- Back
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The living layer of soil, often called topsoil.
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A HORIZON
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The third and most posterior major body segment on insects; consists of 11 or fewer segments; the number of segments is often helpful in insect identification.
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ABDOMEN
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Soils with a pH between 1 and 6.9; sometimes called sour.
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ACID SOILS
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Buds formed at any location on the plant other than terminal or lateral; buds formed on the internode of the stem, at the edge of a leaf, or at the cut on a stem or a root. Stem and leaf cuttings develop roots from ....
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ADVENTITIOUS BUD
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Fruit forme from flowers with several simple pistils, such as raspberries and strawberries.
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AGGREGATE FRUIT
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Chemical messages insects send to gather individuals of both sexes together.
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AGGREGATION PHEROMONES
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Chemical messages insects release when felling threateded or disturbed.
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ALARM PHEROMONES
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Exotic or non-native plants that were not known in Ohio prior to the time of substantial European settlement around 1750
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ALIEN PLANTS
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Soils that measure 7.1 to 14 on the pH scale; these soils are increasingly alkaline or sweet.
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ALKALINE SOILS
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Chemical messages that are communicated from one species to a different species as a defense; these defense chemicals help stop attacks from another organism.
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ALLOMONES
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only one bud or leaf is found at each node.
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ALTERNATE
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Addition of substances such as fertilizer, peat moss, compost, manures worms, inculants, sharp sand, lime, green manures or cover cros, mulches and sewage sludge to improve the soil.
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AMENDMENTS
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Cold-blooded vertebrates with smooth skin; adults have lungs but also breathe through moist skin; includes frogs, toads newts, and salamanders.
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AMPHIBIANS
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Flowering plants.
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ANGIOSPERMS
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Plants that can go through their entire life cycle, from seed germination to seed production and death, in one growing season.
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ANNUALS
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Condition in which there is no oxygen in the water on the bottom of a pond or lake; caused by the rapid growth of phytoplankton and other algae.
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ANOXIA
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Part of the plant where pollen is formed and held until released.
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ANTHER
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Another term for a terminal bud fromed at the tip of a stem.
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APICAL
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Plants that grow in, on, or under water.
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AQUATIC PLANTS
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Class that includes spiders, mites, ticks, scorpions, and pseudo-scorpions.
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ARACHNIDA
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A dry environment
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ARID
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Uneven or unequal; not displaying symmetry.
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ASYMMETRICAL
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The feathers covering a bird's ear.
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AURICULAR
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