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3. Domain of life whose members were first observed by Antoni van Leeuwenhoek.
6. Literally “Earth-centred”.
7. The basin of this river is where Wallace went on his first collecting expedition.
8. The very first illustration of an object magnified by a microscope used a microscope built by this famous scientist.
9. According to Lamarck, spontaneous generation of these organisms would fill a void at the simplest level of living things that resulted from his “pouvoir de vie” or complexifying force.
12. State where Aristotle was born.
13. The development of an industry devoted to producing these visual aids likely directly led to the invention of the compound microscope.
14. Disease studied by Robert Koch which was a major public health problem in the 19th century and which ultimately led him to propose his postulates.
18. August Weissman developed the theory of the continuity of the ___.
19. This classification system was developed by Aristotle.
20. Theory of environmental change that proposes that scientists should be able to explain past change using mechanisms in operation today.

1. Migration of humans is analogous to this mechanism of evolution.
2. According to William Far, this measurement would accurately predict a person’s risk from miasma.
4. Many scholars in the Abbasid empire were involved in this task so that they could disseminate scholarly works from other cultures to other Arabic speakers.
5. Maiden name of Emma Darwin (i.e. her last name at birth).
10. Presocratic philosopher who proposed a mechanism by which living things could change.
11. Particles produced throughout body that Charles Darwin proposed carried heritable information.
15. Cuvier’s Principle of the ___ of parts.
16. Antoni van Leeuwenhoek used (and fabricated) this kind of microscope.
17. Physician who proposed humoral theory.