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Science Vocab
Term | Definition |
---|---|
cell | the basic unit of life |
DNA | genetic material of all living things |
stimulus | causes a reaction in an organ or cell |
evolution | change in the heritable traits of biological populations over successive generations |
natural selection | one of the basic mechanisms of evolution |
artificial selection | intentional breeding of plants or animals |
extintion | occurs when all individual species dies |
mutation | permanent alteration of the nucleotide sequence of the genome of an organism, virus |
homeostasis | is the property of a system in which variables |
sexual reproduction | two parents produce offspring that share characteristics of both parents |
asexual reproduction | single parent produces offspring that is identical |
variation | when offspring have slightly differences in traits |
adaptation | inherited trait that helps organisms survive |
species | a group of organisms that are closely related |