Living Things
Mr. SkirbstLife Science
Topic 03
Living Things
* All living things (on Earth) share similar characteristics
6 Characteristics of Living Things1. Made of cells
6 Characteristics of Living Things1. Made of cells2. Ability to move
6 Characteristics of Living Things1. Made of cells2. Ability to move3. Perform complex chemical
activities (ingestion, digestion, respiration, excretion)
6 Characteristics of Living Things1. Made of cells2. Ability to move3. Complex chemical activities4. Grow and develop
6 Characteristics of Living Things1. Made of cells2. Ability to move3. Complex chemical activities4. Grow and develop5. Respond to stimulus
6 Characteristics of Living Things1. Made of cells2. Ability to move3. Complex chemical activities4. Grow and develop5. Respond to stimulus6. Reproduce
Origins of Life
Spontaneous Generation Theory - stated that living things came
from non-living matter, all by itself
Origins of LifeFrancesco Redi (Italy, 1668)
Origins of LifeFrancesco Redi (Italy, 1668) - disproved theory with his
famous experiment (meat & flies)
Origins of LifeFrancesco Redi- He showed that “living
things do NOT come from non-living matter.”
Origins of LifeFrancesco Redi- He showed that “living
things do NOT come from non-living matter.”
- “Living things come from living things.”
6 Basic Needs of Living Things1. Energy
primary source is the sun
6 Basic Needs of Living Things1. Energy2. Food
(provides chemical nutrients)
6 Basic Needs of Living Things1. Energy2. Food3. Water
(allows chemical activities to occur)
6 Basic Needs of Living Things1. Energy2. Food3. Water4. Oxygen
(from air or water)
6 Basic Needs of Living Things1. Energy2. Food3. Water4. Oxygen5. Living Space
(competition for resources)
6 Basic Needs of Living Things1. Energy2. Food3. Water4. Oxygen5. Living Space6. Temperature
Testing for Life
Can soil from another planet be tested for life?