1. Characteristics, Needs and Classification of Living Things
Diversity of Life
Characteristics, Needs and Classification of Living Things

2. Biologists believe there are 7 signs of life:
Organization
Respond to Their Environment
Perform Chemical Reactions
Take in Energy
Grow
Reproduce
Die

3. Made up of at least one cell
Organization
Made up of at least one cell

4. Respond to environment
Some can move from place to
place
Some respond to gravity,
light, and temperature

5. Perform chemical reactions
Breaking down food to release energy (cellular respiration)
Building new cells (mitosis and meiosis)
Transport of needed materials
Excrete waste products

6. Consumers (heterotrophs) or producers (autotrophs)
Take in energy
Consumers (heterotrophs) or producers (autotrophs)

7. gRow Grow and develop Some organisms just get larger in size
Some organisms change shape as they grow

8. To male more of the species Sexually 2 parents not identical offspring
reproduce
To male more of the species
Sexually
2 parents
not identical offspring
Asexually
1 parent
Genetically identical

9. die Every living thing has life span
Some have very short and some have very long lifespans
Some live a few days or weeks and other live thousands of years

10. Water Food Light Temperature Living Space Oxygen
Needs of living things
Water
Food
Light
Temperature
Living Space
Oxygen

11. Transport materials needed throughout the organism
Water and food
WATER
Transport materials needed throughout the organism
Dissolves minerals
FOOD
Provide energy for the organism
Some decompose, some eat and some make their own

12. Sunlight used to make food for producers Temperature
Light and temperature
Light
Sunlight used to make food for producers
Temperature
Some live in warmer temperatures and others in cooler temperatures

13. An organism’s living space provides for:
Needed resources
Mate
Because of limited
space on Earth, there
is competition

14. Needed for respiration in order to release the energy from nutrients
oxygen
Needed for respiration in order to release the energy from nutrients

15. What is classification?
Classification is the grouping of things according to characteristics The science of classifying organisms is known as taxonomy

16. Early classification systems
Aristotle grouped animals according to the way they moved John Ray was the first to use the term “species”

17. Binomial Nomenclature
Developed by Linnaeus Two-name system Each organism has a genus and a species name First name (genus); second name (species)

18. What is a scientific name?
Combination of the genus and species name of an organism Scientific names of organisms are always italicized or underlined: (Genus is capitalized & species name is lower-case)

19. Eight classification groups of living things
Domain Kingdom Phylum Class
Order Family Genus Species

20. Eight Levels of classification
D id K ing P hillip C ome O ver F or G ood S oup
Domain