Natural Selection Crossword Puzzle -Meagan Chen

2. selection organisms who adapt to environment and produce offspring
8. change humans polluting the earth is changing the earth which can be called this
9. where different kinds of living organisms are to have developed over time
10. pool the stock of different genes in an interbreeding population
13. grizzly bears ____ to cold climates
14. structure when very different animals have organs or muscles that make their structure similar to a different organism
15. evolution a theory that once a species appears in the fossil record it will become stable showing very little evolution
17. a basketball game is a ______ between 2 teams; this is something animals can do as well when fighting over something
18. structure organisms structure that has lost certain organs or bones that the same organisms have
19. selection natural selection where opposite extreme traits are more favored
21. tree a graph that shows living organisms evolving
22. theory an explanation made by a scientist that has been made from facts that have been repeatedly observed

1. is an example of cells being different from one another
3. traits wide variation in a trait with multiple genes ex: height
4. a group of organisms that are really close in similarity and usually produce the similar offspring
5. the variety of life in a habitat, environment, or world
6. this is known as a specie having too many offsprings for the reproductive age
7. this is someone in your family who may be living or not but you could have some of their traits or genes
9. overall way to study species and their embryos
11. the view of evolution that proceeds by small, cumulative steps in long periods of time
12. 2 species do not come in contact with each other which is known as ____
16. selection newborn baby weight can be an example of this selection
20. species created during the process of evolution is known as
23. Darwin biologist who studied the science of evolution