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classification
| Term | Definition |
|---|---|
| Organism | is any individual living thing that can function on its own. |
| Cell | is the basic building block and smallest unit of life that can live on its own. |
| Unicellular | is a living thing that consists of just a single cell. |
| Multicellular | is a living thing made up of more than one cell, rather than just a single cell. |
| Metabolism | is the complete set of chemical processes in your body's cells that turn food and drink into energy and building blocks to keep you alive. |
| Stimulus | is any event, change, or input that causes a physical, behavioral, or functional reaction. |
| Response | is an answer or a reaction to a question, an event, or any other type of stimulus. |
| Development | is the process of growing, changing, or improving to become more advanced, larger, or mature. |
| Asexual reproduction | is a type of reproduction that creates offspring from a single parent without the fusion of sex cells or gametes. |
| Sexual reproduction | is a biological process where genetic material from two parents combines to create a genetically unique offspring. |
| Spontaneous generation | is the discarded scientific theory that living organisms can develop directly and routinely from nonliving matter without parents, seeds, or eggs. |
| Autotroph | is an organism that produces its own food from simple inorganic substances using light or chemical energy. |
| Heterotroph | is an organism that cannot make its own food and must consume other plants, animals, or organic matter for energy and nutrients. |
| Classification | is the act or process of organizing items, people, or ideas into groups based on shared characteristics or types. |
| Taxonomy | is the science and practice of naming, describing, and classifying groups of living organisms or other things based on shared characteristics. |
| Binomial nomenclature | is the formal, universal two-part naming system used in Biology Online to identify every species of living thing. |
| Genus | is a biological classification rank used by scientists to group closely related species. |
| Species | is the basic unit of biological classification and a group of living organisms that can breed together and produce fertile offspring. |
| Prokaryote | is a single-celled organism that does not have a distinct nucleus or other membrane-bound internal structures. |
| Eukaryote | are living organisms made of complex cells that contain a membrane-bound nucleus and other specialized, membrane-bound structures called organelles. |
| Nucleus | is the central and most important part of an object, movement, or group, forming the core around which others collect. |
| Evolution | is the gradual process by which living organisms change, diversify, and develop over successive generations. |
| Branching tree diagram | is a visual tool that starts with a single starting point and splits into multiple paths or categories, looking like the trunk and branches of a tree. |
| Shared derived characteristics | is a trait that two or more groups share because it evolved in their immediate common ancestor, but it is not found in more distant ancestors. |
| Convergent evolution | is the independent development of similar features or traits in unrelated or distantly related species. |
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