click below
click below
Normal Size Small Size show me how
Natural Selection
| Term | Definition |
|---|---|
| Charles Darwin | a scientist who developed the theory of evolution by natural selection after studying how living things vary and adapt over time |
| Migration | the movement of people, animals, or organisms away from their usual place of residence to a new location |
| adaptation | a biological trait that helps an organism survive in its environment |
| habitat | the natural environment where a species lives, grows, and meets its basic survival needs |
| natural selection | the process where organisms with heritable traits better suited to their environment survive longer and reproduce more, causing those advantageous traits to become more common over generations |
| hypothesis | a proposed, testable explanation for a phenomenon, observation, or research question that has not yet been proven |
| variation | any change, difference, or deviation in condition, amount, level, form, or standard from a norm |
| species | Groups organisms based on similar physical shapes, sizes, and structural traits |
| evolve | to develop, change, or grow gradually over time, often moving from a simpler state to a more complex, advanced, or better-adapted form |
| population | the total number of people, animals, or living organisms inhabiting a specific geographic area or region at a given time |
| predator | an organism that naturally hunts, kills, and consumes other organisms (its prey) for food |
| prey | an animal that is hunted, caught, and killed for food by another animal |
| environment | the set of physical, chemical, biological, social, or cultural conditions and surroundings that affect the growth, health, development, and survival of a living organism or system |
| evolution | a gradual process of change, development, or growth from one state to another over time |
| decomposers | organisms that break down dead plants, animal carcasses, and organic waste into simpler inorganic substances like water, carbon dioxide, nitrogen, and phosphorus |
| extinction | the state or process in which a group, species, language, or physical phenomenon no longer exists anywhere on Earth |
| climate | the long-term pattern of atmospheric conditions—including temperature, precipitation, humidity, wind, and sunshine—typically averaged over a 30-year period |
| hiberrnate | to spend the winter in a deep, sleep-like state of inactivity to survive cold weather and food shortages |
| biomes | a large, naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat, defined primarily by regional climate conditions, such as temperature, precipitation, and soil type |
| fitness in natural selection | an organism's ability to survive, find mates, and reproduce |