22 Crossword
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
                          
 
 
Down: 2) any living thing in a ecosystem3) air sacs within the lungs where gases are exchanged between the lungs and the blood4) a form of asexual reproduction in which an offspring forms an out growth of a larger parent organism7) a biological kingdom made up of only of bacteria, many of which live in harsh enviroments9) a form of immunity that develops from exposure to pathogen12) a large region that contains similar ecosystems14)  a preference or prejudice that leads to incorrect answers16) an organism that makes its own food, usually by photosynthesis18) a blood vessel that carries blood away from the heart19) the organ that controls most of the body's activities; the main organ of the nervous system Across: 1) a protein that is made by the body to kill a specific pathogen5) the preserved remains of an organism6) the solid living tissue that make up the skeleton and supports the body8) the kingdom of organisms made up of all animals, all which are multicellular heterotrophs10) a muscular sac that holds urine until it exits the body through the uretha11) an inherited trait that increases an organism's chance of survival13) a form of asexual reproduction used by bacteria15) either upper chamber of the heart17) reproduction that requires only one parent18) any nonliving part of an ecosystem20) a form of a trait carried by a gene21) a pair of tubes that branch off the trachea and enter the lungs
 

 

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