Classification & Living Things

2. An organism that cannot make its own food
4. The broadest level of classification
6. Organisms composed of many cells
10. Single-celled organisms
11. The most numerous organisms on Earth
13. What all living things are called
16. The scientific name for a human
18. The process of an organism becoming larger
21. A change in an organisms surroundings that causes the organism to react
23. The classification system in which organisms are given a unique, two-part scientific name
25. The process of an organism becoming more complex

1. A type of reproduction that involves only one parent
3. Organisms with cells that contain a nucleus
5. The first word in an organisms scientific name
7. Most members of this kingdom feed by absorbing nutrients from dead or decaying organisms
8. The scientific study of classifying organisms
9. Useful tools that help determine the identity of unknown organisms
12. An organisms reaction to a stimulus
14. The process of grouping living things based on similarities
15. The maintenance of stable internal conditions
17. This kingdom contains organisms that are all autotrophs
19. An organism that can make its own food
20. The second word in an organisms scientific name
22. Unicellular organisms whose cell lacks a nucleus
24. This kingdom contains the most diverse organisms