What is it?You and a friend are walking in the woods and you stumble upon this object. You tell your friend this is a living wild mushroom. Your friend argues and says it is not living. What would you tell your friend to make them think this object is a living organism?

LEQ: What are the

characteristics of life?

Name:

Date:

Block:

1.) made up of one or more cells

Smallest unit of lifeSmallest thing that can carry on the functions of life

Organism may be one or many cells

Cells contain hereditary material

Cells are varied

http://youtu.be/YOnIxcc0DW8

2.) the ability to reproduceWithout reproduction, living things would not exist to replace those individuals that die

Survival of the speciesSome bacteria can reproduce every 20 minutes, a pine tree takes two years to produce seeds

http://youtu.be/NRCPmKhJ8ro

3.) obtain and use energyHomeostasis requires energyEnergy comes directly or indirectly from the sun – begins a food chain

Chemosynthesis: used by certain bacteria, the formation of organic material using energy derived from simple chemical reactions

http://youtu.be/XotF9fzo4Vo

4. Grow and developGrowth occurs through taking in raw

materials and making more cellsUsually this is through an increase in

the number of cells Some cells stop dividing: nervous

and muscle tissueDevelopment is the change an

organism goes through during its lifespan

A lifespan is the maximum number of years an individual from a given species can live:

--mayflies live one day--a tortoise for 180+ years--bristlecone pine tree 4,600 years--a human 122 years.http://youtu.be/R3Mt2E1M6dU

Ticket Out the Door!

List 3 organ systems

2 types organs1 type of cell