Biology Terms and Definitions (A-Z) A Abiotic factor any of the nonliving factors that make up the environment of living organisms. podophthalmic /pō-dawf-THAWL-mik/ adj. cell membrane noun. phylum (pl phyla) /FĪ-ləm, FĪ-lə/ n. In taxonomy, a division of a kingdom that itself contains one or more classes. Large-brained infants, such as those of humans and chimpanzees, require a large pelvic opening so that the head can easily pass during birth. Like, pertaining to, or of fish. polyphagia /PAWL-ee-PHAGE-ee-ə, -PHAGE-yə/ n. Excessive appetite. pus n. A thick yellow-white fluid containing leukocytes, albuminous substances, microorganisms, and cell debris. pollination /PAWL-ə-NAY-shun/ n. Fertilization by means of pollen. premature chromosome condensation (PCC) A method of studying chromosomes in the interphase stage of the cell cycle. Log in Sign up. Suchvorschläge bereitgestellt durch GMX does any1 kno a biology word starting with Q?? Extragalactic A term that means outside of or beyond our own galaxy. quasar,quarks,quantum,for good examples, go to What are scientific words that start with Q? This word can be separated as follows: Auto - troph. phloem /FLŌM/ n. The vascular tissue in plants that carries sugars, especially sucrose, made in the photosynthetic regions of the plant, to other parts of the plant. QUIZLET IS FOR “Tonight I work, so tomorrow I can go places” students. plantigrade /PLANT-ə-grade/ adj. Biology Dictionary - S to SYZYGY: Meanings of biology terminology and abbreviations starting with the letter S. proglottid (also proglottis) /prō-GLAWD-əd, prō-GLAWD-əs/ One of the segments of a tapeworm. Below is a list of a few biology words and terms that many biology students find difficult to understand. phosphoglucose isomerase (PGI) /FOSS-fō-GLUE-cose eye-SOM-er-ase/ An enzyme catalyzing the conversion of glucose-6-phosphate into fructose 6-phosphate (second step of glycolysis). polymerase /pə-LIM-ə-raze/ n. An enzyme that catalyzes the synthesis of nucleic acid polymer chains. porometer /pə-RAWM-ə-der/ An instrument for measuring the diameter of stomata. psittacine (also psittaceous) /SID-ə-sine, -kine/ adj. Learn our list of words beginning with Q, then go forth and pwn. Of, pertaining to, or being new-world monkeys. When penetrance is complete, the genotype is expressed in all individuals who have that genotype. pyrimidine /pə-RIM-ə-deen/ n. One of the two types of nitrogenous bases occurring in nucleic acids. Biology . It deals primarily with the documentation of the chronology of the history of life on earth — paleontologist /pale-ee-awn-TALL-ə-jəst, -jist/, Paleozoic Era /pale-ee-ə-ZŌ-ik/ n. The first, and most lengthy era of the Phanerozoic Eon. Flashcards. Compare: bipedal. SEM OF POLLEN TUBES GROWING OUT OF LILY POLLEN GRAINS. polymerous /pə-LIM-er-əs/ adj. Created by. During this stage, the chromosomes look thicker when viewed under a microscope (pachys is Greek for thick). ploidy /PLOY-dee/ n. The number of repetitions of the basic chromosome number occurring in a polyploid. picosecond (ps) /PEEK-ō-SEK-ənd, PEEK-ə/ n. One-trillionth (10-12) of a second. By breaking these words down into discrete units, even the most complex terms can be understood. Learn. parapatric /pare-ə-PAT-rik/ adj. putrefaction /pyoo-trə-FAK-shən/ n. A condition of decay or rottenness; usually accompanied by an offensive odor. List by Alphabet: Pertaining to pimples. C   It lasted from 65.5 to 55.8 mya. Access answers to several hundred biology questions, carefully explained and easy for you to understand. Follow Question. The LibreTexts libraries are Powered by MindTouch ® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. phospholipid /FOSS-fō-LIP-əd/ n. A lipid that contains phosphate esters of sphingosine or glycerol. Paleogene (Pg formerly known as Lower Tertiary) /PALE-ee-ə-jeen/ n. The first period of the Cenozoic Era. polytene chromosome /PAWL-ee-teen/ A type of giant chromosome in which many identical chromatids lie alongside of one another. picomole /PEEK-ō-mole, PEEK-ə/ n. One-trillionth (10-12) of a mole. pollen /PAW-lən/ n. A mass of pollen grains. pyuria /pī-YUR-ee-ə/ n. Pus in the urine. Browse. Pi Inorganic phosphate (also: orthophosphate ion). quadrivalent /KWAW-drə-VALE-ənt/ n. An association of four homologous chromosomes during synapsis in meiotic prophase I. quadruped /KWAW-droo-ped/ n. Any land animal employing quadrupedalism as its ordinary mode of locomotion (as does a deer or a lizard). Another characteristic feature of phoronids is the presence of an umbrella-like feeding apparatus called a lophophore (see figure at right), which is also present in bryozoans and brachiopods, with which phoronids are sometimes grouped as lophophorates. Khan Academy is a 501(c)(3) nonprofit organization. 90% of students who use Quizlet report higher grades. pedicle /PED-ə-kəl/ n. (1) one of two vertebral processes, each of which connects the body of a vertebra with one of the lamina. (1) winged; (2) feathered; (3) wing-shaped. phytophagous /fīt-TAWF-ə-gəs/ adj. Compare: biped, tetrapod. polygenic trait /PAWL-ee-JEN-ik/ A trait resulting from the combined action multiple genes. precipitation (also chemical precipitation) /prə-sip-ə-TAY-shən/ n. The production of a precipitate. What are the types of non-luminous flame? Ano yung mga espesyal na guhit sa globo o mapa? Purines are composed of fused five- and six-member heterocyclic rings of carbon and nitrogen atoms. Engaging in photosynthesis. probe In molecular biology, a single-stranded DNA or RNA molecule, or some other biochemical, labeled either radioactively or immunologically, used to detect the presence of a gene, a gene product, or a protein. CHART OF RELATIVE TAXONOMIC RANKS. paleoanthropologist /PALE-ee-ō-an-thrə-PAWL-ə-jist/ A scientist who studies the fossil remains, and the associated artifacts, of the ancestors of modern human beings. pleiotropy /PLĪ-ō-TRŌP-ee/ n. A condition in which one gene causes a variety of different physical traits (e.g., multiple disease symptoms). MORE INFORMATION. WORDS THAT START WITH “Q” Use this Word Finder to find words that start with Q for Scrabble, Words with Friends and other word games. For more specific definitions from other glossaries related to ecology, see Glossary of biology, Glossary of evolutionary biology, and Glossary of environmental science. Plant-eating. pericarditis /PAIR-ə-kar-DITE-əs/ n. Inflammation of the pericardium. Being paralyzed in all four limbs. pediatrics /pee-dee-AT-ricks/ n. The study and medical treatment of the diseases of children. Seen on chromosomes under ultraviolet light after quinacrine mustard staining /PAK-ə-derm/ n. a large gland, situated the. Certain plants stalk of a tapeworm idea of apes being human ancestors as, caused by a cell. The site on a computer your biology homework organs except the kidneys: different! Of Descriptive words that begin with letter Q of carbon and nitrogen atoms little love pneograph /NEE-ō-graf/ n. condition. Of hypercoiling a single pregnancy who have that genotype enzyme catalyzing transfer of a phosphate links two consecutive nucleotides a... 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