System

1. System A group of objects or phenomena that interact or work together.

2. Classification Grouping based upon shared characteristics.

3. Cell Smallest living unit that is able to perform the basic functions of life.

4. Tissue Group of cells that work together.

5. Organ 2 or more types of tissue that work together to perform a function.

6. Photosynthesis The process plants use to capture energy from sunlight and convert it to chemical energy. lllllllllllllllllllllll llllllllll Lllllllllllll Llll Lll Lllllll lllll

7. Cellular Respiration Process in whichcells use oxygen to release energy stored in sugars.

8. Stimulus Something that produces a response from an organism.

9. Behavior An organisms action in response to a stimulus.

10. Adaptation Characteristic, behavior, or inherited trait. Makes a species able to survive in a particular environment.

11. Characteristic Trait. Attribute. Distinguishing feature.

12. Structure The framework of something; How it is put together.

13. Function The natural action of something; How it works.

14. Invertebrate An animal that does not have a backbone.

15. Vertebrate Animal that has a backbone.

16. Exoskeleton A strong outer covering made of chitin. Protects cells, tissues and organs. Some invertebrates have them.

17. Endoskeleton Internal support system. Grows as the animal grows. Vertebrates have them.

18. Ectotherm Animals whose bodytemperature changes with the environment. (Cold blooded.)

19. Endotherm Animals that maintain a constantbodytemperature. (Warm blooded.)

20. Mammal • Warm-blooded • vertebrates • Females give • birth to live • young • Have hair, • produce milk

21. Reptile • Cold-blooded • vertebrates • Covered with • scales or horny plates • Have lungs

22. Amphibian • Cold-blooded • vertebrates • Babies • live in water • and use gills • Adults • live on land • and use • lungs