Songbird: A generic name given to the members of the order Passeriformes. Xylem and phloem are examples of complex tissues. Amphibolic Pathways: Metabolic pathways that function both anabolically, as well as catabolically. Neonate: The phenomenon of producing live young ones instead of laying eggs. Start studying Biology: Simple Cells and Definitions!. Taxonomy: A practice used to classify animals with evolutionary relationships, as basis of this classification. Rhizosphere: The zone of soil immediately adjacent to plant roots in which the activity and type of micro-organisms present differ from that in the rest of the soil. Autonomic Nervous System: The part of the vertebrate nervous system that regulates involuntary action of an animal’s internal organs like the intestines, heart, and glands. Acidophile: An organism that grows well in an acidic medium (up to a pH of 1). Tuberculate: An organism or part of an organism which is covered in fleshy and raised protuberances, also called tubercules. n. The science of life and of living organisms, including their structure, function, growth, origin, evolution, and distribution. Capsomere: A protein sub-unit of the capsid of a virus. Chaperonin: Heat shock proteins that oversee correct folding and assembly of polypeptides in bacteria, plasmids, eukaryotic cytosol, and mitochondria. Bipedal: Bipedalism is a manner of moving on land, where the organism progresses using only its two rear limbs, or legs. Keratin: A hard insoluble protein substance found in hair, nails of mammals, scales of reptiles and bird feathers. This reptile is known for its sharp teeth and powerful jaws. They are small and spherical in shape. Conidiospore: A thin-walled, asexual spore seen on hyphae which is not contained in sporangium. Saw-Scaling: Action of a snake curving its body in concentric curves and rasping its keeled scales together to make a sawing sound as a warning. Isolation: A procedure wherein a pure culture of an organism is obtained from a sample or an environment. Uropygial Gland: This is the same as the Preen Gland. Airfoil: A structure designed to lift and control the airflow by making use of different levels of air waves. victoria_wilson205. Barophile: An organism that thrives in conditions of high hydrostatic pressure. Endoparasite: This type of organism or parasite (such as tapeworm) exists and feeds inside the bloodstream or tissue of its host. Pulmonate: Land snails and other air breathers belonging to Pulmonata Subclass and Sorbeconcha Clade. It is known to secret oil. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Cell-mediated Immunity: Immunity resulting from destruction of foreign organisms and infected cells by the active action of T-lymphocytes on them. Biology Dictionary is a free, concise, illustrated dictionary of biology and medicine. See the full definition for gene in the English Language Learners Dictionary. It is the region of the antigen to which the variable region of the antibody binds. Read more on adaptations in desert animals. Slime Layer: A diffuse layer found immediately outside the cell wall in certain bacteria. Virion: The virus particle and the virus nucleic acid surrounded by a protein coat. Comment se déroule une consultation ? Supplemental Plumage: A third set of feathers found in birds that have three different plumages in their annual cycle of molts. Preen Gland: It refers to the gland found on the back, at the base of the tail in most birds. Lipopolysaccharide (LPS): Complex lipid structure containing sugars and fatty acids, which is commonly found in most Gram negative bacteria. L'écologie est une science récente de la biologie née dans les années 1800. Storage Polysaccharide: The energy reserves which are stored in a cell when there is excess of carbon available. Also called microbes, these include bacteria, fungi, protozoans, algae, and viruses. Microsite: A small part of the soil where the biological or chemical processes are different from the rest of the soil. In mammals, these fangs are called canine teeth and are used for tearing flesh. Neutralism: Lack of interaction between two organisms in the same habitat. Barotolerant: An organism that can tolerate high hydrostatic pressure, although it will grow better under normal pressure. Gill: The respiratory organ of any aquatic animal. Any introductory level biology course should comprise at least some explanation of how basic biology definitions . Antisense RNA: One of the strands of a double-stranded molecule, which does not directly encode the product, but is complementary to it, thus, inhibiting its activity. Gram Stain: A differential stain that divides bacteria into two groups, as Gram positive and Gram negative, depending on the ability of the organism to retain crystal violet when decolorized with an organic solvent like ethanol. Viable Count: Measurement of the concentration of live cells in a microbial population. Camouflage: A feature common to invertebrates, which helps them blend with their surroundings using its skin colors or patterns. Biotrophic: Close associations seen between two different organisms, that work mutually to benefit each other. This only refers to mammals. Aerobic: This includes organisms that require molecular oxygen to survive (aerobic organisms), an environment that has molecular oxygen, and processes that happen only in the presence of oxygen (aerobic respiration). Molt: Molt is a process where birds and animals shed their hair, plumage, feathers, skin, horns, etc. Cell Biology. Rostrum: An anatomical structure, present in a species in the form of a snout, which projects out from the head of the animal. [Back]. Related Biology Terms. We are adding more terms! Spread Plate: A technique for performing a plate count of micro-organisms. Range: A particular geographical area in which particular species of organisms are found. These will help you when answering questions whether they are on worksheets and past papers. Cellulitis: A diffused inflammation of the soft or connective tissue, in which a thin and watery exudate spreads through tissue spaces, often leading to ulceration and abscess formation. Field Capacity: Content of water remaining in the soil after being saturated with water. Secondary Metabolite: Product of intermediary metabolism released from a cell, for example, antibiotic. PLAY. Toothed whales and toothless filter feeding whales are among those that belong to this catergory. Glossary Pearson, as an active contributor to the biology learning community, is pleased to provide free access to the Classic edition of The Biology Place to all educators and their students. Mysticetes: Whales of the suborder Mysticeti, like Right whales, finback, gray whale, humpback whales, rorquals, etc. The definition of a simple is an easily misled person or an ignorant person. What does biology mean? Définition La biologie est une discipline scientifique. Plasmogamy: Fusion of two cell contents, inclusive of the cytoplasm and nuclei. Combinatorial Biology: The process of transfer of genetic material from one microorganism to another. Cnidaria: A name given to the invertebrate phylum Coelenterata, the emphasis is given to the stinging characteristic of the phylum, which makes up its basic structure comprising nettles, which are generally toxic in nature. Developmental Response: The development of morphological and physiological qualities of an organism in response to prolonged or changing environmental conditions. Dikaryon: When two nuclei are present in the same hyphal compartment (they may be homokaryon or heterokaryon), it is known as dikaryon. Peat: Unconsolidated soil material consisting mostly of undecomposed organic matter with excessive moisture content. Trachea: The pipe serving as the principal passage for movement of air to and from the lungs, in humans and other vertebrates. It is carried out with the aim of examining where organisms dwell, and at what populations. Compounds that are unsegmented, usually microscopic roundworm to improve your experience while navigate! Smaller than simple biology definitions microns measurement, that is seen in plants as the cell exclusive... Toxin produced by a microorganism that is known for that particular species of living organisms can... 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