biodiversity

3. All the inhabitants of a particular town, area
6. The arrangement of and relations between the parts
8. Relating to genes
11. Develop in different directions
13. A feature or quality belonging typically to a person, place, or thing and serving to identify it
14. Existing in or caused by nature
16. Performing a similar function but having a different evolutionary origin
18. having the same relation, relative position, or structure
19. The action or process of mutating
20. A primate is a member of the group of mammals which includes humans, monkeys, and apes

1. A collection of fossils documenting Earth’s history
2. A whole with interdependent parts, likened to a living being
4. The action or fact of carefully choosing someone or something
5. All of the people/organisms born and living at about the same time
7. A group of living organisms consisting of similar individuals
9. The state or fact of continuing to live or exist
10. Relating to or characteristic of people
12. A change or difference in condition, amount, or level, typically with certain limits
15. A progenitor of a more recent or existing species or group
17. An animal's young