Across
- 1. a taxonomic rank (a taxon) consisting of organisms that share a common attribute; it is further divided into one or more orders.
- 6. various cells, tissues, and organs in a body which no longer serve a function.
- 9. branch of biology that deals with the geographical distribution of plants and animals
- 10. a taxonomic rank that is composed of smaller groups called phyla (or divisions, in plants)
- 11. when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other.
- 14. an organism's ability to survive and reproduce in a particular environment
- 16. the identification by humans of desirable traits in plants and animals
- 17. structures that are similar or resembling in certain respects
- 18. word used to describe things that have some sort of similarity in some ways
- 19. a condition where a gene pool is not changing in frequency across generations
Down
- 2. the opposite of disruptive selection
- 3. A taxonomic rank used in classifying organisms, generally below the class, and comprised of families sharing a set of similar nature or character
- 4. the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth
- 5. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
- 7. a scientific term grouping together related organisms on the basis of their fundamental characteristics
- 8. A taxonomic group of one or more genera,especially sharing a common attribute
- 12. the introduction of genetic material (by interbreeding) from one population of a species to another
- 13. variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce
- 15. the process through which species adapt to their environments
- 16. a change or the process of change by which an organism or species becomes better suited to its environment
