Bio Vocab O-OS

										1					2			3
4			5
6												7
																	8
							9
10														11						12
					13
			14
																15
				16
				17
														18

Across 1. An animal that does not actively adjust to its internal osmolarity because it is isotonic with its environment. 4. Microorganisms that are normal residents of a host but can cause illness when the host's defenses are weakened by such factors such as poor nutrition or a recent bout with the flu. 6. Solute concentration expressed as molarity. 7. In classification, the taxonomic category above family. 8. A specialized center of body function composed of several different types of tissues. 9. An arrangement of the fingers such that the thumb can touch the ventral surface of the fingertips on all four fingers. 2 Words 10. The mouth of an animal. 2 Words 11. In prokaryotic DNA, a sequence of nucleotides near the start of an operon to which an active repressor can attach. 14. The study of carbon compounds. 2 Words 16. Bone-forming cells that deposit a matrix of collagen. 17. A measure of the tendency of a solution to take up water when separated from pure water by a selectively permeable membrane. 2 Words 18. The diffusion of water across a selectively permeable membrane.

Down 2. One of several formed bodies with specialized functions, suspended in the cytoplasm of eukaryotic cells. 3. An arrangement of internal transport in which blood bathes the organs directly and there is no distinction between blood and interstitial fluid. 3 Words 5. The control of water balance in organisms living in hypertonic, hypotonic, or terrestrial environments. 6. A heterotrophic animal that consumes both meat and plant material. 7. The development of organ rudiments from the three germ layers. 12. A unit of genetic function common in bacteria and phages, consisting of coordinately regulated clusters of genes with related functions. 13. A group of organs that work together in performing vital body functions. 2 Words 15. A large opening in a sponge that connects the spongocoel to the environment.

The look has changed! Some of the puzzles that people list for the public get indexed by the search engines (like Google). Some people find those puzzles and cannot figure out how to make a puzzle of their own. So this page now has the navigation sidebar.

Use the "Printable HTML" button to get a clean page, in either HTML or PDF, that you can use your browser's print button to print. This page won't have buttons or ads, just your puzzle. The PDF format allows the web site to know how large a printer page is, and the fonts are scaled to fill the page. The PDF takes awhile to generate. Don't panic!