Chapter 2 Sections 1 & 2
Packet pages 1-15
Pages 2-6
1. An organism is a living thing
2. Six characteristics that all living things share
 Cellular organization
 Contains similar chemicals
 Use energy
 Respond to their surroundings
 Grow and develop
 Reproduce
3. Cells
4. True
5. False
6. C. water
7. Proteins
8. True
9. C. stimulus
10. Answers may vary
 Stimulus: car horn
 Response: jumping when startled
11. Development is the process of change that occurs during an organisms life to produce a more complex organism
12. Reproduce
13. False
14. Spontaneous generation
15. Redi showed that flies do not spontaneously arise from decaying meat in his experiment.
16. Manipulated variable
17. False
18. Water, food, living space, stable internal conditions
19. True
20. Autotrophs, heterotrophs
21. False
22. Organisms need water to:
 Obtain chemicals from their surroundings
 Bread down food
 Grow
 Move substances within their bodies
 Reproduce
23. True
24. Conditions must be just right for cells to function
Page 7
1. All living things have cellular organization, contain similar chemicals, use energy, respond to their surroundings,
grow and develop, and reproduce.
2. Redi’s experiment showed that flies do not spontaneously arise from rotting meat but are produced from the
eggs of their flies.
3. Living things must satisfy basic needs for water, food, living space, and stable internal conditions.
4. Growth is the process of becoming larger, whereas development is the process of becoming more complex.
5. Stimulus
6. Autotrophs
7. Multicellular
8. Spontaneous generation
9. Organisms
10. Cell
11. Heterotrophs
12. Response
13. Manipulated variable
14. Homeostasis
15. Reproduce
16. Unicellular
Pages 12-14
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Classification
Biologists organize living things into groups so that the organisms are easier to study.
Taxonomy
True
True
Binomial nomenclature
True
Genus: Felis Species: Felis concolor
A, B, D
Levels of classification:
 Domain
 Kingdom
 Phylum
 Class
 Order
 Family
 Genus
 Species
11. true
12. The great horned owls belongs to the order Strigiformes
13. Domains of living things:
a. Bacteria
b. Archaea
c. Eukarya
14. Organisms are placed in domains and kingdoms based on their:
 Types of cells
 Ability to make food
 Number of cells in their bodies
15. A, B
16. Nucleus
17. False
18. The hard conditions where they live are similar to those of ancient Earth.
19. True
20. Protists are eukaryotes – their cells contain nuclei
21. True
22. A, D
23. Autotrophs
24. False
25. B, C
26. True
Page 15
1. Levels of classification: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
2. Organisms are placed into domains and kingdoms by:
 Cell type
 Ability to make food
 Number of cells in their body
3. B
4. A
5. G
6. C
7. E
8. F
9. D
10. H