click below
click below
Normal Size Small Size show me how
Science terms 721
Science words
Question | Answer |
---|---|
Fossil Record | A historical sequence of life indicated by fossils found in layers of Earth's crust. |
Over production | More offsprings are produced than can survive. |
Species | A group of organism that are closely related and can mate to reproduce offsprings. |
Inherited Variation | Each offsprings inherits a unique combination of traits. They are not all indentical. |
Successful reproduction | Offsprings with traits that help them survive will grow up and have their own offsprings. |
Struggle to survive | Some offsprings will survive and some will not. |
Fossil | The remains or physical evidence of an organism preserved by geological process. |
Evolution | The process in which inherited characteristics within a population change over generations such that new species sometimes arise. |
Adaptation | A characteristics that improves an individuals ability to survive and reproduce in a particular environment. |
Natural Selection | The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution. |
Trait | A genetically determined characteristics. |
Speciation | The formation of new species as a result of evolution. |
Generation Time | The period between the birth of one generation and the birth of the next generation. |
Selective Breeding | The human practice of breeding animals or plants that have certain desired characteristics. |