CLEP Biology Latest Update 100% Correct

CLEP Biology Latest Update 100% Correct Evolution Evolution is the process of change that has transformed life on Earth DNA Deoxyribonucleic acid: a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix Biology The scientific study of life Eukaryotic Cell A type of cell with a membrane-enclosed nucleus and membrane-enclosed organelles. Organisms with eukaryotic cells (protists, plants, fungi, and animals) are called eukaryotes. Prokaryotic Cell A type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles. Organisms with prokaryotic cells (bacteria and archaea) are called prokaryotes. Biosphere The entire portion of Earth inhabited by life; the sum of all the planet's ecosystems. Ecosystems All the organisms in a given area as well as the abiotic factors with which they interact; one or more communities and the physical environment around them Community All the organisms that inhabit a particular area; an assemblage of populations of different species living close enough together for potential interaction. Population A group of individuals of the same species that live in the same area and interbreed, producing fertile offspring. Organism a creature such as a plant, animal or a single-celled life form, or something that has interdependent parts and that is being compared to a living creature Organs A specialized center of body function composed of several different types of tissues. Organ Systems A group of organs that work together in performing vital body functions. Tissues An integrated group of cells with a common structure, function, or both. Organelles Any of several membrane-enclosed structures with specialized functions, suspended in the cytosol of eukaryotic cells. Cell The part of a neuron that houses the nucleus and most other organelles. Molecule Two or more atoms held together by covalent bonds. Negative Feedback A form of regulation in which accumulation of an end product of a process slows the process; in physiology, a primary mechanism of homeostasis, whereby a change in a variable triggers a response that counteracts the initial change. Positive Feedback A form of regulation in which an end