10 Facts About Cancer Cells. These materials could be sawdust, plastic, leaves etc. Hypolimnion: This is the dense, bottom layer of water, that lies below the thermocline, in a thermally stratified lake. Critical Habitat: A habitat which is critical for the survival and conservation of a species, designated by a rule published in the Federal Register. Aerotolerant Anaerobes: Microbes that can survive in both, aerobic and anaerobic conditions, because they obtain their energy by fermentation. Filly: A female horse that is four years or younger in age. Anastomosis: A network of intersecting or connecting blood vessels, nerves, or leaf veins that form a plexus. Conditioning: A learning method either using a stimulus – response, or a reward – punishment method, in which associations are made. to facilitate the growth of new ones. For example, the set of parallel vertical grooves which are present on the sides of salamanders and newts. Apoenzyme: A protein part of an enzyme that is separable from the prosthetic group (the coenzyme). Terminal Electron Acceptor: The last acceptor of the electron, as it exits the electron transport chain. Humus: Fine organic substance, composed of partial or fully-decomposed animal or plant matter, and found in soil. Theophrastus is known as father of Botany. Methanogenic Bacterium: Bacteria that produce methane as a by-product of their chemical reactions. Complex Viruses: Viruses with capsids that are neither icosahedral nor helical. In birds, they are situated near the mouth or eyes. A-Z List of Biology Terms and Definitions. This nest has no soft lining. Axenic: Pure cultures of micro-organisms, that is, which are not contaminated by any foreign organisms. Apomorph: A new specialized trait in an evolving organism which is completely different from its ancestral line. It is an attached culture system. This sludge contains living organisms that can feed on incoming wastewater. The trunk of these species is enclosed in a shell. Bacteriostatic: An agent that inhibits the growth or multiplication of bacteria, but does not kill them. Countershading: The development of dark colors on the areas exposed to the sun and light colors on the undercarriage. Learn the Language of Mitosis. What are sister chromatids? Our site includes quite a bit of content, so if you're having an issue finding what you're looking for, go on ahead and use that search feature there! Partial Molt: Partial molt is a process where some of the bird’s feathers get replaced. Cell Biology. Virion: The virus particle and the virus nucleic acid surrounded by a protein coat. Calamus: It is the hollow base of a feather shaft, which attaches the feather to the skin. Autolysins: A lysin that originates in an organism, which is capable of destroying its own cells and tissues. This may be the outcome of environmental changes, loss of habitat, or predation. Also called a nonspontaneous reaction or unfavorable reaction. Insertion Sequence: The simplest possible type of transposable elements. Parasexual Cycle: A nuclear cycle wherein genes of haploid nuclei recombine without meiosis. Zymogenous Flora: Refers to micro-organisms that respond rapidly by enzyme production and growth when simple organic substrates become available. Accidental: Accidental refers to the occurrences or existence of all those species that would not be found in a particular region under normal circumstances. Fang: Fangs are long, pointed teeth located in the front of the mouth. Micrometer: One millionth of a meter (10-6 meters). Dominant Trait: The relationship between two alleles in which one masks the ex… Territory: The area of belonging, which is guarded by animals against intruders, especially belonging to the same species. Blastomycosis: An infection caused due to Blastomyces dermatitidis, it predominantly affects skin, lungs, and bones. in list order from A to Z from Z to A from easy to hard from hard to easy. Reannealing: The process seen on cooling, where two complementary strands of DNA hybridize back into a single strand. Lag Phase: The time period when there is no increase in the number of micro-organisms, seen after inoculation of fresh growth medium. Sometimes used interchangeably with primary producer. This can be caused by enzymes, lytic agents, or other toxic compounds. Diazotroph: Organism capable of using dinitrogen as its sole nitrogen source. Alleles are inherited by parents and determine aspects of individuals such as their particular blood type. Transduction: The process where host genetic information is transferred through an agent like a virus or a bacteriophage. Secondary: It refers to the set of flight feathers on the second segment of a bird’s wing. Isoenzyme: When two different enzymes, which may be different in their composition, act as catalysts for the same reaction, or set of reactions. Definition. It is used by the male snake, while courting. Alula: A set of quill-like feathers located close to the base of the primary feathers that play a part in increasing or decreasing the bird’s lift by affecting the airflow of the wings. Psychrotroph: An organism that is able to grow at zero degrees and above twenty degrees Celsius. Lift: The airfoil (see airfoil) that controls the movement of the birds when in flight, as well as the force with which the birds fly is termed as lift. Basic Biology Terms Beverly Biology; 6 videos; 4,603 views; Last updated on Jun 11, 2015; Play all Share. They are subjected to tidal fluctuations. Chemoheterotroph: Organisms that obtain energy and carbon from the oxidation of organic compounds. light-independent reactions See Calvin cycle. Acid Soil: Soil which has a pH value lesser than 6.6. After-Shaft: A small supplementary feather, growing from the underside of the base of the shafts of a body feather. Barotolerant: An organism that can tolerate high hydrostatic pressure, although it will grow better under normal pressure. Cytoplasmic Membrane: A selectively permeable membrane which is present around the cytoplasm of the cell. Read more on adaptations in desert animals. Basic Biology Terms - Displaying top 8 worksheets found for this concept.. Cyanobacterium: A photosynthetic, nitrogen fixing bacteria which includes the blue-green bacteria. Constitutive Enzyme: Enzymes synthesized in the cell, irrespective of the environmental conditions surrounding the cell. It is calculated per individual, and is usually communicated as a function of age. Heterolactic Fermentation: A kind of lactic acid fermentation, wherein various sugars are fermented into different products. Gaping: The open width of space, created by forcefully opening the jaws or mandibles of a vertebrate. Learn all about various cell types, cellular anatomy, and cellular processes. It’s normally considered to be a good fertilizer. Read more on the structure and functions of cytoplasm. Tarsus: The bone, which contributes in making the ankle joint, located between the tibia, fibula and metatarsus in mammals. This is done with the purpose of identifying the individual/creature at the time of recapture. Feedback Initiation: Inhibition by an end product of the biosynthetic pathway involved in its synthesis. Biotransformation: The chemical alterations of a drug, occurring in the body, due to enzymatic activity. Anus: An opening at the lower end of the digestive tract through which all solid waste is eliminated from the body. Fungus: Eukaryotic heterotrophic organisms that live as saprophytes or parasites. Capsomere: A protein sub-unit of the capsid of a virus. Humic Acid: Dark-colored organic material extracted from the soil by the use of reagents and which is precipitated by acid. Recombination: Process by which genetic elements in two separate genomes are brought together in one unit. Biology is brought to you with support from the Our mission is to provide a free, world-class education to anyone, anywhere. Batch Culture: A culture of micro-organisms which is obtained by inoculating a dish containing a single batch of medium. Pour Plate: The method of performing a plate count of micro-organisms. Actinorhizae: The association present between actinomycetes and roots of plants. Allochthonous Flora: Organisms that are not originally found in soil, but reach there via precipitation, sewage, diseased tissue, and other such means. Book Lung: It is an organ used for respiration, and is part of the body system of arachnids, such as spiders and scorpions. Invertebrate: Pertaining to organisms without a backbone. Benthic Zone: The ecological region at the lowest level of a water body, including the sediment surface and some sub-surface layers. Lanceolate: An elongated shape that is slender and tapers towards the apex or base. This value is in comparison to the population of the desired species. abdomen. Pathogenicity: The ability of a parasite to infect or inflict damage on a host. Chromosome: Part of the cellular structure in which genes are located. Syntrophy: Interaction between two or more populations that supply each other’s nutritional needs. Annelida: The taxonomic group of animals that includes coelomate, and elongated and segmented invertebrates such as leeches, earthworms, marine worms, etc. A form of life; an animal, plant, fungus, protist or bacterium. Fledgling: Is a young bird that has recently fledged, but is still being fed and cared for by the parents. Human Body: The entire physical structure of a human being. Toothed whales and toothless filter feeding whales are among those that belong to this catergory. Term. Agglutinates: The visible clumps that are formed as a result of an agglutination reaction. Delphinidae: A group of marine mammals that belong to the family Delphinidae and the Order Cetacea, like dolphins and their relatives. Monoclonal Antibody: Antibody produced from a single clone of cells, which has a uniform structure and specificity. Rectrices: The stiff and main feather of a bird that is used to navigate, when the bird is in flight. Hydras, jellyfish, corals, and sea anemones belong to this group. This is a temporary phase. Methanogenesis: The production of methane by biological reactions. Serology: Study of reactions that take place between antigens and antibodies in vitro. Insectivore: An organism that feeds chiefly on insects. People involved in the science field encounter innumerable jargons during their study, research, or work. Barbel: Often found on fish, a barbel is a slim, whisker-like tactile organ located near the mouth. It helps the snake detect its prey. Lysogeny: An association where a prokaryote contains a prophage and the virus genome is replicated in sync with the chromosome of the host. Zooplankton: A collection of various species of plankton. Luxury Uptake: Uptake of nutrients in excess of what is required by an organism for its normal growth. Fluorescent Antibody: This is a laboratory test that is done, wherein antibodies are tagged with fluorescent dye to detect the presence of micro-organisms. Decomposition: Chemical breakdown of a compound into smaller and simpler compounds by micro-organisms. Adjuvant: The material added to an antigen to increase its immunogenicity, for example, alum. Activation Energy: The amount of energy required to bring all molecules in one mole of a substance, to their reactive state, at a given temperature. Do you know that hair waste can be used as a plant fertilizer? Biology I: yeast, Drosophila and C. elegans. Torsion: The asymmetrical positioning of the body achieved, due to twisting and repositioning, during development. Arthropod: A group of invertebrate animals such as the insects, crustaceans, arachnids, centipedes, etc that are characterized by a exoskeleton and a segmented body with jointed appendages. Passerine: Pertaining to the order Passeriformes (type of a bird). This unique collection features three model organisms commonly used in life sciences research; also covering methodology to maintain them in the laboratory. Viable but Nonculturable: Living organisms that cannot be cultured on artificial media. Plankton: Microscopic organisms like algae and protozoa that drift on the oceans’ currents. Nitrogenase: The enzyme required for biological nitrogen fixation. Also called a trophic pyramid, eltonian pyramid, energy pyramid, or sometimes food pyramid. B. Cavity: A space within the body that contains various internal organs. Fimbria: Short filamentous structure present on a bacterial cell, involved with adhesion of the bacteria to other surfaces it comes in contact with. Songbird: A generic name given to the members of the order Passeriformes. See molts. Defined Medium: A medium whose quantitative and chemical composition is exactly known. Gene Cloning: Isolation of a desired gene from an organism and its replication in large amounts. Habitat Expansion: Increase in the habitat (overall area) distribution of the species. You also have the option to opt-out of these cookies. Consortium: Two or more members working together, where each organism benefits from the other, thus often performing functions that may not be possible to carry out individually. Biotic Factors. Amnion: The innermost delicate embryonic or fetal membranes of higher vertebrates like mammals, birds, and reptiles. Filamentous: In the form of very long rods, mostly seen in bacteria. Apoptosis: A pattern of cell death which is often called ‘programmed death’ or ‘suicide of cells’, wherein the cell breaks up into fragments, which are membrane bound. Elliptical: The shape of an egg which is widest in the middle and rounded at both ends. Amphibians are vertebrates and cold-blooded. A single cell may be a complete organism in itself, such as a bacterium, or it may acquire a specialized function, becoming a building block of a multicellular organism. List of definitions of terms and concepts commonly used in the study of biology, History of the creation-evolution controversy, Relationship between religion and science, Timeline of biology and organic chemistry, https://en.wikipedia.org/w/index.php?title=Glossary_of_biology&oldid=987351949, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License. Taxon: A word used to group or name species of living organisms. Microbiology: The study of micro-organisms, often with the aid of a microscope. Antheridium: The male gametangium found in phylum Oomycota (kingdom Stramenopila) and phylum Ascomyta (kingdom Fungi). Biology. Microsite: A small part of the soil where the biological or chemical processes are different from the rest of the soil. Infrared (IR): The portion of the electromagnetic spectrum whose wavelength ranges from 0.75 microns to 1 millimeter. Mulch: Materials which are laid down on soil to protect it from rain, crusting, freezing etc. Consumer: An organism, often an animal, which feeds on plants or other animals. Most animals like the bear, prefer the winters to go into hibernation. Glycosidase: The enzyme responsible for hydrolizing a glucosidic linkage between two sugar molecules. The unit used to express the amount is in centimoles of negative charge per kilogram of soil. Conjugants: Mating partners that participate in conjugation, which is a type of sexual reproduction, seen in protozoans. Homofermentation: A type of fermentation where there is only one type of end product generated. Bacteroid: A genus of bacteroides, these are gram negative, rod-shaped, anaerobic bacteria which are normal inhabitants of the oral, respiratory, urogenital, and intestinal cavities of animals and humans. Biodegradation: The process of breakdown of substances by chemical reactions, thus rendering these substances less harmful to the environment. Endospore: A cell which is formed by certain gram-positive bacteria in unfavorable conditions. Hermaphroditic: Organism that have, as well as are capable of reproducing using both male and female reproductive organs. Cephalosporin: A group of broad-spectrum, penicillinase-resistant antibiotics, derived from Cephalosporium. It is used more specifically to refer to the upper side of a tortoise or turtle’s shell. 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