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2.1 Organs in Animals and Plants © Pearson Education www.sciencesource.ca 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 17 19 20 21 Across 1. The flower contains female organs, called the _____, which consists of the ovary, style and stigma. 7. The _____ is the reproductive structure of the plant. 8. Digested nutrients and undigested waste products move into the small and large _____, which are areas of chemical digestion and removal of wastes. 9. Once the food enters your body, it travels from the mouth down a tube called the _____. 10. An _____ is an organized group of tissues that performs a specific function. 11. The _____ churns food and mixes it with digestive juices and enzymes. 12. The flower contains male organs, called _____. Down 1. The tissues in a leaf work together to accomplish _____, a chemical reaction in which carbon dioxide and water are converted into sugar and oxygen. 2. Just below the root cap's epidermal tissue is a layer of _____ tissue in plants, which allows the root to grow. 3. Food moves along the esophagus because of the rhythmic constriction and relaxation of the smooth muscles that line the esophagus. This movement is known as _____. 4. _____ anchor the plant in the soil, which permits the plant to grow above the soil without toppling over. Across Down 14. The _____ is a muscular pump that supplies blood to all parts of the body. 16. The _____ are a pair of organs involved in respiration. They allow you to breathe in oxygen and breathe out carbon dioxide. 17. _____ tissue carries water needed for photosynthesis from the root up the stem to the leaf. 18. _____ join together to form organs that have specialized functions. 20. Most of the leaf is made of a specialized ground tissue called _____. Photosynthesis takes place in this tissue. 21. _____ tissue provides structure and support. Blood and blood vessels are examples of this tissue. 5. The _____ is the outer protective layer of skin that is made up of epithelial tissue. It prevents bacteria and viruses from entering your body. 6. The plant _____ performs two major functions: to transport water and nutrients throughout the plant and to support the leaves and flowers. 13. Carbon dioxide enters, and oxygen and excess water exit through openings in the leaf epidermal tissue called _____. 15. When you breathe, air moves down the trachea to the bronchus, into smaller bronchial tubes, and then into tiny air sacs, called _____, which are made of a thin layer of epithelial tissue. 19. The largest organ in your body is the _____.