Bare Necessities of Life

1
Bare Necessities of Life

• 1. Food Energy
• ________ make their own food
• _________obtain food by eating other
  organisms
• ___________ by breaking down nutrients of dead
  organisms or animal wastes

producers
consumers
decomposers
2
Bare necessities continued
2. ______...Needed for chemical _________ to
occur in the body can only survive about
_______without water
Water
reactions
3 days
3
Bare necessities continued

• ____..._________ of several gases
• ________ needed by most organisms to
• release energy from food
• Producers require _______________
• in addition to oxygen to convert sunlight to
• ______

Air
mixture
oxygen
carbon dioxide
food
4
Bare necessities continued

• ____________must _______ all
• things organisms need to _______
• leads to ___________
•  

Place to live
provide
survive
competition
5
Life Processes
These are__________ for survival
necessary

• _______ and ____________
• Growing is getting _______
• Development is getting more _______
• _______ use
• __________ all chemical ________ that occur
  in the _____

Growth
Development
bigger
complex
Energy
Metabolism
reactions
body
6
Life Processescontinued

• Use of ______
• water makes up ______ percentage of body
• Exchange of ______
• _______ take carbon dioxide ___ and let oxygen
  _____
• ________ take oxygen ___ and let carbon dioxide
  _____

water
large
gases
Plants
in
out
Animals
in
out
7
Life processescontinued

• Elimination of ______
• Solid, Liquid and gaseous waste
• 6. _____ _____
• The length of time an organism is expected to
  ______
• ________ from species to species

waste
Life Span
exist
varies
8
Life processescontinued

• 7. ______________
• _________ single parent produces
• offspring _________to the parent
• ________ usually requires _____
• parents to produce offspring with ______
• of ______ parents

Reproduction
Asexual
identical
Sexual
two
traits
both
9
Life processescontinued

• _________ to _________
• The body does this to maintain
• _____________ (allows the ___________
• to keep a _______ internal environment)
• Examples

Respond
Stimulus
homeostasis
organism
stable