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Austin's vocabulary terms

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Answer
Abiotic   nonliving chemical and physical factors in the environment  
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Absolute zero   (cryogenics) the lowest temperature theoretically attainable (at which the kinetic energy of atoms and molecules is minimal)  
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Abyss   a bottomless gulf or pit  
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Acceleration   an increase in rate of change  
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Acid   An acid (from the Latin acidus meaning sour) is traditionally considered any chemical compound that, when dissolved in water, gives a solution with a hydrogen ion activity greater than in pure water, i.e. a pH less than 7.0. ...  
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Acoustic   the study of the physical properties of sound … Acoustics is the interdisciplinary science that deals with the study of sound, ultrasound and infrasound (all mechanical waves in gases, liquids, and solids). A scientist who works in the field of acoustics  
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Acquired behavior   behavior that is gotten through environmental forces  
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Adaptation   Adaptation is one of the basic phenomena of biology. It is the process whereby an organism becomes better suited to its habitat. Also, the term adaptation may refer to a characteristic which is especially important for an organism's survival. ...  
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Adult   a biologically grown or mature person  
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After birth   the passing of the placenta following birth  
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Aftershock   a tremor (or one of a series of tremors) occurring after the main shock of an earthquake  
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Agnatha   superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys  
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Agua   largest known toad species  
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Air mass   a large body of air with uniform characteristics horizontally  
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Air sac   An air-filled space in the body of a bird that forms a connection between the lungs and bone cavities and aids in breathing and temperature…Sacs that communicate with the respiratory, air-filled membranous system in birds and primates.  
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Albino   A person or animal lacking normal pigmentation, with the result being that the skin and hair are abnormally white or milky and the eyes have a pink color.  
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Alcohol   A colorless volatile flammable liquid, C 2 H 5 OH, synthesized or obtained by fermentation of sugars and starches and widely used.  
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Algae   primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves  
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Alloy   A homogeneous mixture or solid solution of two or more metals, the atoms of one replacing or occupying interstitial positions between the atoms of the other: Brass is an alloy of zinc and copper.  
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Alluvial fan   a fan-shaped deposit where a fast flowing stream flattens out  
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Alpine   Of, relating to, or characteristic of the Alps or their inhabitants. Of or relating to high mountains.  
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Alternate current   In alternating current (AC, also ac) the movement (or flow) of electric charge periodically reverses direction. ...  
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Altitude   The height of a thing above a reference level, especially above sea level or above the earth's surface.  
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Alveoli   The plural of alveolus. The alveoli are tiny air sacs within the lungs where the exchange of oxygen and carbon dioxide takes place. ...  
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Amber   A hard translucent yellow, orange, or brownish-yellow fossil resin, used for making jewelry and other ornamental objects.  
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Amnionic fluid   The fluid bathing the fetus and serving as a shock absorber.  
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Amphibian   A cold-blooded, smooth-skinned vertebrate of the class Amphibia, such as a frog or salamander, that characteristically hatches as an aquatic larva with ...  
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Amplification   To make larger or more powerful  
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Analysis   a detailed examination or an investigation of the component parts of a whole and their relations in making up the whole  
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Anemia   a deficiency of red blood cells  
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Anemometer   a gauge for recording the speed and direction of wind  
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Angiosperm   plants having seeds in a closed ovary  
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Angler   a fisherman who uses a hook or an anglerfish  
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Animal   Any organism of the Kingdom Animalia, distinguished from plants by certain typical characteristics such as the power of locomotion, fixed structure and limited growth, and nonphotosynthetic metabolism  
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Ankle   a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus  
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Annelida   Any of various worms or wormlike animals of the phylum Annelida, characterized by an elongated, cylindrical, segmented body with bristles and including the earthworm and leech.  
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Annual plant   An annual plant is a plant that usually germinates, flowers, and dies in one year. True annuals will only live longer than a year if they are protected from weather conditions.  
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Anther   the part of the stamen that contains pollen  
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Anthropologist   a social scientist who specializes in anthropology which is the study of the origin, behavior, and the physical, social, and cultural development of humans.  
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Anus   the excretory opening at the end of the alimentary canal  
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Appendages   An appendage in the broadest sense is an additional or subsidiary part existing on, or added to, something which can generally still function if the appendage is not there.  
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Aqua   water  
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Aquarium   a tank or pool or bowl filled with water for keeping live fish and underwater animals  
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Aquatic   relating to or consisting of or being in water  
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Aqueduct   A pipe or channel designed to transport water from a remote source, usually by gravity.  
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Aquifer   underground bed or layer yielding ground water for wells and springs etc  
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Arachnid   air-breathing arthropods characterized by simple eyes and four pairs of legs  
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Archipelago   a group of many islands in a large body of water  
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Arctic   A region between the North Pole and the northern timberlines of North America and Eurasia.  
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Area   a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture. a quantity expressing the two-dimensional size of a defined part of a surface, typically a region bounded by a close  
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Arrow (chemical equation)   The arrow points in the direction of the reaction, from the reactants to the products.  
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Artery   a blood vessel that carries blood from the heart to the body  
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Arthropoda   jointed-foot invertebrates: arachnids  
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Asexual reproduction   reproduction without the fusion of gametes  
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Asteroid   any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)  
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Asteroid belt   the region of interplanetary space between Mars and Jupiter where most asteroids are found  
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Astro   Involving astronomy  
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Astrogeologist   The geology of celestial bodies.  
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Astronomy   The scientific study of matter in outer space, especially the positions, dimensions, distribution, motion, composition,  
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Atmosphere   The gaseous mass or envelope surrounding a celestial body,  
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Atmospheric pressure   the pressure exerted by the atmosphere  
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Atoll   an island consisting of a circular coral reef surrounding a lagoon  
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Auditory   of or relating to the process of hearing  
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Aurora australis   An aurora that occurs in southern regions of the earth. ...  
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Auto   (self) On its own or one's own, by its own action  
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Auxin   a plant hormone that promotes root formation and bud growth  
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Aves   (ornithology) the class of birds  
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Aviary   a building where birds are kept  
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Aviation   A general term including the science and technology of flight through the air.  
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Axis   A straight line about which a body or geometric object rotates or may be conceived to rotate  
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