Fig. 2-11. This type of movement is characteristic of living things. 



Fig. 2-12. Living things are irritable. They respond to Fig. 2-13. Living things take in food from v»^hich they 

 their environment in very definite ways. derive energy to carry on all their life processes. 



Fig. 2-14. Growth is a characteristic of all life. 



Fig. 2-15. All living things reproduce and the offspring 

 resemble the parents in most respects. 



