Your SlideShare is downloading. ×
Eco chapter 2 n
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Eco chapter 2 n


Published on

Published in: Education, Technology

  • Be the first to comment

  • Be the first to like this

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

No notes for slide


  • 1. Chapter 2 Sustaining What the Environment Provides
    • Objectives
      • Described how the environment sustains life and the role of sustainable resource use
      • Name and explain the basic life needs that the environment provides for living organisms
      • Identify the three roles of humans in the environment
      • Describe the environment as home, including ecosystems, habitats, and food webs
  • 2. Terms
    • Conservation
    • Ecosystem
    • Food
    • Food chain
    • Food web
    • Habitat
    • Hypothermia
    • Nutrient
    • Quality of life
    • Respiration
    • Shelter
    • Space
    • Sustainable agriculture
    • Sustainable development
    • Sustainable resource use
    • Sustaining life
    • Territory
  • 3. Ask Yourself
    • What do I need to live?
    • How does the environment help provide these needs?
  • 4. Sustaining Life
    • Organism require certain things to live that provided by the environment
    • Conditions are no longer provided, life may not be possible
    • Using resources so they last a long time
    • A person should use no more than is needed
    • No resource should be wasted
  • 5. Sustainable Resource Use
    • Is using resources so they last a long time
    • The resource is renewed, reused, and recycled as best as possible
    • Proper conservation practices are used
  • 6. Sustainable Development
    • Is to assure the best possible future
    • All development is carried out for the best long-term benefits to society
  • 7. Sustainable Agriculture
    • Involves using practices that assure the future ability to produce crop and livestock
    • Soil conservation practices are used to prevent loss and damage
    • Pesticides are used only as need and as approved
    • Wastes are properly disposed of and are not dumped on the land nor in streams
    • Area are provided for wildlife to live and grow
  • 8. Having Good Quality of Life
    • Quality of life is having a good environment in which to live
    • Environment provides for the needs of people
    • Example,they have clean air to breathe, unpolluted water to drink, and feel safe
  • 9. Life Needs
    • The major needs of living things are:
      • Food
      • Water
      • Air
      • Space
      • Protection or shelter
  • 10. Food
    • Food is nourishment and is need for energy and growth
    • Organisms obtain nutrients from food substances
    • Common nutrients are proteins, carbohydrates, fat, minerals, and vitamins
    • Damage to environment can result in food that is contaminated with dangerous materials
  • 11. Water
    • All living things required water to survive
    • Most nutrients dissolve in water to diffuse into the cells
    • If people do not get sufficient water, they become dehydrated
    • Dehydration is the removal of water from cells and organs
    • People get sick and required fluids back into system
  • 12. Air
    • Air is a mixture of gases that includes oxygen
    • Aerobic means to live where free oxygen is available
    • Anaerobic means to live where is not free oxygen
    • Human live in an environment with about 21 percent oxygen in the air
  • 13. Space
    • Space is the area around an organism that it uses for living
    • Space includes air, area for activity, food sources, and places for shelter and protection
    • Territory is the area an animal uses and protects as its own
  • 14. Shelter and Protection
    • Organisms sometimes need protection from the environment
    • Humans use clothing and housing to protect themselves from the weather
    • Greenhouse are used to provide a controlled environment for growing plants
  • 15. Roles of Humans
    • Humans have three roles:
    • Humans are resource users
    • Humans can make decisions about resource use
    • Humans can prevent waste
  • 16. The Environment as Home
  • 17. Ecosystem
    • An ecosystem is all of the parts of a particular environment
    • It is a community of living organisms and nonliving materials
    • Ecosystems can be large or small
    • Ecosystems are continually changing
  • 18. Habitat
    • Habitat is the physical area where an organism naturally lives
    • It is the proper arrangement of four essential elements: food, water, shelter, and space
  • 19. Energy Transfer
    • Organisms must have energy to move about and carry out life functions
    • All of the energy in an ecosystem originates with the sun
    • Plants use sunlight and the process of photosynthesis to make food
  • 20. Food Chain
    • Energy is transferred from one organism to another in the food chain
  • 21. Food Web
    • A food web is all the interconnected food chains of an ecosystem
    • A plant may be eaten by more than one animal
    • The animals may be the prey of other animals
    • Finally, plants and animals die and their remains decay and are returned as nutrients to the soil
  • 22. Tests
    • How is quality of life affected when resources are damaged?
    • What are the major life needs of living organisms?
    • Why are these important?
    • What are the roles of humans in relating to the quality of the environment?
    • What relationships exist among ecosystems, habitats, and food chains?