Exercise 1 Directions: Complete the crossword by filling in a word that fits each clue. 2 3 10 Across: 1. An organ which receive the waste product carried by the blood. 4. It is a gas that the body needs. 6. It is a combination of hemoglobin and oxygen that enters the body. 7. The respiratory and digestive work as it absorbed that being distributed through the body 10. The system responsible for digestion of food. Down: 2. The ability to maintain a relatively stable internal state that persist despite changes in the world outside. 3. The respiratory and circulatory work together by exchanging of 5. The signal that circulatory system carries that control the speed of digestion 8. The system responsible of exchange of gases 9. The system carries nutrients to the entire body cells
[tex]pa \: help \: po[/tex]
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