1
										2
																								3
				4									5						6
										7
																				8
								9
						10														11
			12														13
	14									15
								16
																							17
																	18
															19
																									20
																	21
22													23
												24						25
				26		27
28
																						29
																	30
31									32

Across 2. a group of organs that work together to perform one or more functions. Each does a particular job in the body, and is made up of certain tissues. (2 Words) 4. done or acting according to a fixed plan or system; methodical. 6. a particular sphere of activity, interest, or experience. 7. a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction. (2 Words) 8. the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment. 10. a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles 13. a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact. 16. a cellular organelle found in plant cells. It is often the largest organelle in the cell. It is surrounded by a membrane and functions to hold materials and wastes. (2 Words) 18. the basic unit of a chemical element 21. any of a number of organized or specialized structures within a living cell. 22. an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. 24. an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus. 28. a thing predicted; a forecast. 30. any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products. 31. a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans. 32. a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells.

Down 1. a collection of beliefs or practices mistakenly regarded as being based on scientific method. (2 Words) 3. arranged in a systematic way, especially on a large scale. 5. a plastid that contains chlorophyll and in which photosynthesis takes place. 9. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. 10. a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question. (plural form) 11. the semipermeable membrane surrounding the cytoplasm of a cell. (2 Words) 12. the action or process of observing something or someone carefully or in order to gain information. 14. a statement or account that makes something clear. a reason or justification given for an action or belief. 15. symbiosis in which one of the symbiotic organisms lives inside the other. 17. facts, information, and skills acquired by a person through experience or education; the theoretical or practical understanding of a subject. 19. an arrangement or classification of things according to relative importance or inclusiveness. 20. a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose. (2 Words) 23. The round granular structure within the nucleus of a cell, composed of proteins, DNA, and RNA, and functions primarily for the creation of ribosomes. 25. an individual animal, plant, or single-celled life form. 26. the activity or skill of marking coherent words on paper and composing text. 27. existing in or caused by nature; not made or caused by humankind. 29. the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.