Chapter 14

2. intracellular digestion in which particles are ingested
4. circulatory fluid that bathes the organs directly in the circulatory system
5. intracellular digestion in which liquids are digested
7. gas exchange occurs in this part of the lungs
9. the third stage in food processing seen in animals
11. the movement of molecules from an area where they are high in concentration one of low concentration
12. biological functions an organism performs
14. this refers to animals that live on or in their food source
16. this organism has sufficient surface area which allows for exchange of gases

1. biological form of an organism
3. this type of evolution usually results in similar adaptations of diverse organisms facing similar challenges
6. regularly consumes animals as well as plant material
8. cavity this “space” functions in both digestion and distribution of nutrients
10. moves the respiratory medium over the respiratory surface
13. Marine worms use this as a gas exchange medium
15. an organism which has cells that are in direct contact with their environment