Biology Chapter !

3. the ability of an organism to detect and respond to changes in the external or internal environment
4. first classification on organism
7. one of the group in vertebrates
8. one of the major group in plant kingdom
9. animal without a vertebral column (or a backbone)
10. one of the characteristic of life
12. and action by an organism or part of an organism, causing it to change its position
14. which include bacteria, are unicellular organism (made up of one cell)
15. the permanent increase in dry mass and size of an organism
16. the science of life
17. the breakdown of nutrient molecules in cells to release for metabolism
18. may make an organism become more complex and change in form.
20. animals with a vertebral column (or a backbone)

1. is the key used to identify and classify organism.
2. organism are classified based on the features that they share.
5. simple unit of life
6. one of the group in Arthropod
9. multicellular organism which have cells with a nucleus but no chlorophyll or cell wall.
11. the process that makes more of the same kind of organism
13. the taking in of materials of energy, growth and development
16. system that that give two names to each species
19. consist of genetic material enclosed by a protein coat.