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Science - Biology Glossary


#   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z
 
Abiogenesis An early theory that was held that some organisms originated from . . .
Abnormal Hemoglobin Hemoglobin molecule with a different shape due to an altered amin . . .
Abscisic Acid A plant hormone that promotes dormancy in perennial plants and ca . . .
Absolute Time One of the two types of geologic time (relative time being the ot . . .
Absorption The process by which the products of digestion are transferred in . . .
Absorptive Feeders Animals such as tapeworms that ingest food through the body wall. . . .
Acetyl Coa An intermediate compound formed during the breakdown of glucose b . . .
Acetylcholine A chemical released at neuromuscular junctions that binds to rece . . .
Acid A substance that increases the number of hydrogen ions in a solut . . .
Acid Rain The precipitation of sulfuric acid and other acids as rain. The a . . .
Acoelomates Animals that do not have a coelom or body cavity; e.g., sponges a . . .
Acquired Immunodeficiency Syndrome (Aids) A collection of disorders that develop a . . .
Actin The protein from which microfilaments are composed; forms the con . . .
Action Potential A reversal of the electrical potential in the plasma membrane of . . .
Active Transport Transport of molecules against a concentration gradient (from reg . . .
Adaptation Tendency of an organism to suit its environment; one of the major . . .
Adaptive Radiation The development of a variety of species from a single ancestral f . . .
Adenine One of the four nitrogen-containing bases occurring in nucleotide . . .
Adenosine Diphosphate (ADP) Lower energy form of ATP, having two (in . . .
Adenosine Triphosphate (ATP) A common form in which energy is stored . . .

1 2 Adh - Ana 3 Ana - Ant 4 Ant - Ase 5 Ase - Axo 6 Axo - Bio 7 Bio - Bot 8 Bot - Cam 9 Cam - Cel 10 Cel - Che 11 Che - Cil 12 Cil - Com 13 Com - Con 14 Con - Cre 15 Cre - Dea 16 Dea - Dic 17 Dic - Dna 18 Dna - Ele 19 Ele - End 20 End - Eub 21 Eub - Eye 22 Eye - Fol 23 Fol - Gam 24 Gam - Geo 25 Geo - Gon 26 Gon - Hal 27 Hal - Hom 28 Hom - Hyp 29 Hyp - Int 30 Int - Jur 31 Jur - Lat 32 Lat - Loo 33 Loo - Man 34 Man - Men 35 Men - Mic 36 Mic - Mol 37 Mol - Mul 38 Mul - Nep 39 Nep - Non 40 Non - Ope 41 Ope - Ost 42 Ost - Pan 43 Pan - Pep 44 Pep - Phl 45 Phl - Pin 46 Pin - Ple 47 Ple - Pre 48 Pre - Pro 49 Pro - Pul 50 Pul - Rec 51 Rec - Res 52 . . >