Biology Introduction

5. feedback that changes the direction of the stimulus
8. the body’s response to external stimuli
10. the scientific study of life
11. the body’s attempt to maintain optimum conditions
13. selection where nature acts on variation in species to select the next generation
15. an organism entire made of one cell
18. properties new properties that occur as we move up the taxonomic scale
19. use inorganic material as a carbon source
20. reproduction where one organism reproduces on its own

1. use chemicals as an energy source
2. specific number of nucleotides that codes for the production of a protein
3. the study of the structure of living things
4. the highest taxonomic level such as Archaea, Bacteria, and Eukarya
6. selection where humans decide which traits are desirable for the next generation
7. the process of change in life from its earliest form to the modern diversity of life
9. the sum of catabolism and anabolism
12. the build up of larger molecules from smaller ones
14. the study of the structure of living things
16. the complete protein produced from one gene
17. the structural and functional unit of life