GED Science 2025 REAL EXAM QUESTIONS
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Terms in this set (337)
Belief that livings things may develop from lifeless
Abiogenesis
matter
A compound that In water produces hydrogen ions,
Acid
usually tastes sour, a pH less than 7
rain containing acids that form in the atmosphere
Acid rain when industrial gas emissions (especially sulfur
dioxide and nitrogen oxides) combine with water
Homogenous mixture composed of two or more
Alloy
metals
Amoeba A type of Protozoan that has no permanent shape
Amorphous having no definite form or distinct shape
Amplitude The maximum value of a wave or vibration
Fermentation, or respiration in the absence of
Anaerobic respiration
oxygen
Anemia lack of a normal number of red blood cells
Positive electrode of an electrolytic cell; negative
Anode terminal of a battery; negative plate of a vacuum
tube; site where oxidation occurs
compound that blocks the growth and reproduction
Antibiotic
of bacteria
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A protein, usually in the blood of an organism, that
Antibody serves to counteract the effects of disease-
producing bacteriabor viruses
a remedy that stops or controls the effects of a
Antidote
poison
A substance that prevents the growth or activity of
Anticeptic
bacteria
Antitoxin Substance in the body neutralizes toxins
Wormlike, narrow part of the alimentary canal, in the
Appendix
lower right-hand part of the human abdomen
A piece of metal or a coil of wire that moves back
Armature
and forth, or rotates, in a magnetic field
a blood vessel that carries blood away from the
Artery
heart to the periphery of the body
A group of organisms that have jointed appendages,
an exoskeleton, bilateral symmetry, and reproduce
Arthropods
sexually; insects, arachnids, millipedes and
cenitpedes, and crustaceans
Vitamin C; found in citrus fruits, tomatoes, and green
Ascorbic acid
vegetables
Aseptic Free of living bacteria
Producing offspring without inion of individulaln or
Asexual reproduction
germ cells
Process by which digested food is utilized by the
Assimilation
body to build up or repair cells
Process by which digested food is utilized by the
Assimilation
body to build up or repair cells
One of a group of "minor plants" between Mars and
Asteroid
Jupiter, of which about 1,500 are known
Atmosphere The whole mass of gases surrounding a planet
smallest particle of an element, consisting of a
Atom
nucleus surrounded bynelectrons
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The breaking down of an atomic nucleus, into two or
Atomic fission
more parts, with a great release of energy
The joining of atomic nuclei to form heavier nuclei,
such as deuterium (heavy hydrogen) and tritium
Atomic fusion (another isotope of hydrogen) to make helium,
resulting in the release of enormous quantities of
energy
An upper chamber of the heart thatnreceives blood
Auricle
from the veins-also called the atrium
Organism (a green plant) that nourishes itself by
Autotroph
making organic materials out of inorganic
a plant hormone that promotes root formation and
Auxin
bud growth
Bacillus aerobic rod-shaped spore-producing bacterium
(microbiology) single-celled or noncellular
Bacteria spherical or spiral or rod-shaped organisms lacking
chlorophyll that reproduce by fission
the balence of animals and palntes in their
Balance in Nature
enviroment
Barometer an instrument that measures atmospheric pressure
A term used to discribe the amount of energy the
Basel Metabolism body expends when in a inactive or basic (basal)
state.
any of various water-soluble compounds capable of
Base turning litmus blue and reacting with an acid to form
a salt and water
solid unweathered rock lying beneath surface
Bedrock
deposits of soil
Benign Tumor a tumor that is not cancerous
a digestive juice secreted by the liver and stored in
Bile
the gallbladder
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