The Bare Necessities of Life

1
The Bare Necessities of Life
2
What we need to live?

• What are some things that are needed by living
  organisms?
• Why do they need them?

3
Water

• Our bodies are made up mostly of water it makes
  up 70 of our cells.

4
Air

• Air has a combination of gases N, O, and CO2
• Oxygen (O2) used in respiration reaction which
  converts sugar to energy
• Carbon dioxide (CO2)
• Green plants, algae and some bacteria use CO2
  to produce oxygen and food by
  photosynthesis
  

5
Not all organisms need O2

• Organisms that can live with out air are
  anaerobic
• Clostridium botulinum
• Produces botulin a toxin that could be toxic to
  humans
• Never feed honey to a baby under 1 year old

6
A place to live
7
Food

• Producer an organism that can make its own food
  by using energy from its surroundings

8
Food

• Consumer an organism that eats other organisms
  or organic matter

9
Food

• Decomposer an organism that gets energy by
  breaking down the remains of dead organisms or
  animal wastes and consuming or absorbing
  nutrients

10
decomposer
decomposers
11
Our friend the Superworm

• You will now have the opportunity to provide the
  necessities of life to a colony of superworms and
  you will observe and describe what affects their
  growth and life cycle