BIOLOGICAL SCIENCES

1. The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.
4. The central or most important part of something.
7. A way of acting on something or someone.
10. A detailed proposal for doing or achieving something.
12. The amount of space that a substance or object occupies.
14. The making of a judgment about the amount, number, or value of something.
15. A state of mental or emotional strain or tension resulting from adverse or demanding circumstances.
17. The process of putting a decision or plan into effect.
19. A particular place or position.

2. A proposed explanation made on the basis of limited evidence as a starting point for further investigation.
3. A way of carrying out a particular task, especially the execution of a scientific procedure.
5. Coming at the end of a series of actions.
6. The result of a process or event.
7. The act of taking away or abolishing something.
8. The act of getting something.
9. A supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
11. A particular order in which related things follow each other.
13. A plan of action designed to achieve a long-term or overall aim.
16. The scientific study of life.
18. A particular procedure for accomplishing or approaching something, especially a scientific or systematic one.