Semester 2 Review PS

2. everything living and nonliving that surrounds an organism
7. a way of hiding by looking the same as the background
9. when the moon is completely dark
14. a moon phase that looks like a full circle from Earth
15. the kind of trait that makes it less likely an individual will survive in a particular environment
16. the process by which species adapt to environmental changes over a very long time
17. a related organism from a previous generation
18. a moon phase in which the Moon is not visible from Earth
20. the process by which the distribution of traits in a population changes over many generations

1. the shape of the illuminated part of the Moon as it appears from Earth
3. the process by which one population evolves into two or more different species
4. an older population from which two or more newer species descended
5. a more recent species that evolved from an ancestor population
6. the kind of trait that makes it more likely an individual will survive in a particular environment
8. to shine light on an object and make it visible
10. sharing a common ancestor population
11. the border between light and dark on the Moon
12. a body structure in two or more species that features the same parts
13. a graph that uses bars to show how characteristics are distributed within a group
19. a part of an organism