WILLIAMS 30 Crossword
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
 
 
Down: 1) the group of organs that break food down into molecules that are small enough to be absorbed by and transported throughout the body2) the basic unit of structure and function in all organisms4) grouping of objects or organisms based on similarities and differences between them5) all the different populations that live in the same place at the same time6) a scientific theory which states that all living are composed of one or more cells,the is the basic unit of structure and function in all living things and all cells come from existing, living cells8) a consumer that eats only or mostly animals9) the fluid the occupies most of the space with in a cell10) an organelle that captures the energy of sunlight11) a process in which bacteria remove nitrogen from nitrogen compounds and change it back into nitorgen gas, which is returned to the atmosphere12)  a flexible connect tissue that is part of the skeletal system13) a tiny blood vessel that connects an artery to a vein and that exchanges substances such as gases and nutrients between the blood and body cells14) a tightly coiled structure found in the nucleus of most cells that contains the organism's genetic information15) a thin, flexible barrier that surrounds the cell's contents17)  a symbiotic relationship in which one organism benefits and the other is not effected18) the molecule that determines what traits are passed from one generation to the next22) an organism that gets its energy by eating other organisms Across: 1) a tool that can be used to determine the identity of something by using observations to answer a series of questions3) the body system made up of the brain and spinal chord7) an explanation of what the evidence collected during an investigation shows12) a relationship in which multiple organisms try to use the same resources16) how an organism changes during its lifetime17) the process in which oxygen is combined with food to release energy19) a sheetlike muscle beneath the lungs that expands and contracts the chest cavity to control breathing20) information gathered during a investigation21)  the type of muscle tissue that makes up the heart23) a consumer that feeds on wastes or remains of other organisms, and returns matter to the environment as it breaks down those remains24)  a factor that is kept constant during an experiment25) the process that breaks down food molecules into simpler substances26) the variable that may change in response to the independent variable27) a transport system that uses blood to carry nutrients and oxygen to the cells of the body
 

 

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