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| a plant, animal, or other organism bearing an evolutionary relationship to another, often as a member of the same family |
| the merging of two or more cells into a single cell |
| selection (sɪˈlɛkʃən) | |
| —n | |
| 1. | the act or an instance of selecting or the state of being selected |
| 2. | a thing or number of things that have been selected |
| 3. | a range from which something may be selected: this shop has a good selection of clothes |
| 4. | biology See also natural selection the natural or artificial process by which certain organisms or characters are reproduced and perpetuated in the species in preference to others |
| 5. | a contestant in a race chosen as likely to win or come second or third |
| 6. | (Austral) |
| a. the act of free-selecting | |
| b. a tract of land acquired by free-selection | |
selection se·lec·tion (sĭ-lěk'shən)
n.
A natural or artificial process that favors or induces survival and perpetuation of one kind of organism over others that die or fail to produce offspring.