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DO NOW:
A human is living
A rock is nonliving
What makes a living thing different than nonliving things?! What can humans do that rocks cannot?
UNIT 2: WELCOME TO LIFE
The Characteristics of Living Things
• Video
• All Living Things have organization.
• All organisms are made from 1 or more cells.
• Organism= a living thing
• Single-celled organisms– Organisms made from just 1 cell living and functioning
independently.
• Multicellular organisms– Organisms made from 2 or more cells working together
to maintain life
• Video
• Each cell goes through many chemical reactions to keep the organism alive.
• Synthesis• Digestion
• The Regents calls these chemical reactions “metabolic processes.”
• Metabolism- the buildup and breakdown of materials.
• All living things go through metabolic processes.
• “Metabolic Activities” = the chemical reactions of life!!!
• All living things must respond to their environment.
• Both internal environment and external environment
• Internal = Inside
• External = Outside
• Living things must maintain homeostasis.
• Homeostasis is the balance between a living thing and its environment.
• Homeostasis = Balance
• All living things need a way to reproduce
• Reproduction continues life as we know it.
• Living things need a way to pass on their genetic information, DNA
• DNA is the instructions for building life.
• All Living things grow and develop
• All Living things grow and develop
• All Living things evolve
–Life has changed over long periods of time.
The 7 Characteristics of Living Things:
1. Living things have organization2. Living things are made from 1 or more cells3. Living things go through metabolic activities4. Living things maintain homeostasis5. Living things reproduce6. Living things grow7. Living things evolve
The 7 Characteristics of Living Things:
1. Living things have organization2. Living things are made from 1 or more cells3. Living things go through metabolic activities4. Living things maintain homeostasis5. Living things reproduce6. Living things grow7. Living things evolve
Define the following terms:
OrganismHomeostasisMetabolic ProcessesExternalInternalSingle celled organismMulticellular organism