day 5

1. A disadvantage or problem that makes something less acceptable.
3. The parts left after something has been removed, destroyed, or has died; often refers to bones or other physical evidence of something that once existed.
4. A person from whom one is descended, typically more distant than a grandparent.
8. To break out suddenly and violently; often used in the context of volcanoes or emotions.
9. To find out for certain; to make sure of.
12. An animal that primarily eats meat.
13. To cause (something) to occur in a particular way; to establish exactly by research or calculation.
14. The passing on of physical or mental characteristics genetically from one generation to another.
15. A toxic substance produced by certain animals, such as snakes and spiders, used to immobilize or kill prey.

2. Engagement in or the activities involved in war or conflict.
5. The state or process of a species, family, or larger group being or becoming extinct.
6. A social division in a traditional society consisting of families or communities linked by social, economic, religious, or blood ties.
7. The series of vertebrae forming the backbone in humans and other vertebrates.
10. A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
11. To commit oneself to and begin (an enterprise or responsibility).