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