GED Science

Abiogenesis - answer-Belief that livings things may develop from lifeless matter Acid - answer-A compound that In water produces hydrogen ions, usually tastes sour, a pH less than 7 Acid rain - answer-rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water Alloy - answer-Homogenous mixture composed of two or more metals Amoeba - answer-A type of Protozoan that has no permanent shape Amorphous - answer-having no definite form or distinct shape Amplitude - answer-The maximum value of a wave or vibration Anaerobic respiration - answer-Fermentation, or respiration in the absence of oxygen Anemia - answer-lack of a normal number of red blood cells Anode - answer-Positive electrode of an electrolytic cell; negative terminal of a battery; negative plate of a vacuum tube; site where oxidation occurs Antibiotic - answer-compound that blocks the growth and reproduction of bacteria Antibody - answer-A protein, usually in the blood of an organism, that serves to counteract the effects of disease-producing bacteriabor viruses Antidote - answer-a remedy that stops or controls the effects of a poison Anticeptic - answer-A substance that prevents the growth or activity of bacteria Antitoxin - answer-Substance in the body neutralizes toxins Appendix - answer-Wormlike, narrow part of the alimentary canal, in the lower right-hand part of the human abdomen Armature - answer-A piece of metal or a coil of wire that moves back and forth, or rotates, in a magnetic field Artery - answer-a blood vessel that carries blood away from the heart to the periphery of the body Arthropods - answer-A group of organisms that have jointed appendages, an exoskeleton, bilateral symmetry, and reproduce sexually; insects, arachnids, millipedes and cenitpedes, and crustaceans Ascorbic acid - answer-Vitamin C; found in citrus fruits, tomatoes, and green vegetables Aseptic - answer-Free of living bacteria Asexual reproduction - answer-Producing offspring without inion of individulaln or germ cells Assimilation - answer-Process by which digested food is utilized by the body to build up or repair cells Assimilation - answer-Process by which digested food is utilized by the body to build up or repair cells Asteroid - answer-One of a group of "minor plants" between Mars and Jupiter, of which