6 th  Grade Science  Chapter 14  Interactions of Life Notes Section 14.3 Zambia’s South Luangwa National Park
<ul><li>What does life require? </li></ul><ul><li>All life requires a constant supply of energy.  </li></ul><ul><li>How do...
<ul><li>Living organisms need a constant supply of energy. </li></ul>Obtaining Energy   <ul><li>The energy that fuels most...
<ul><li>The energy-rich molecules, usually sugars, serve as food.  </li></ul><ul><li>When the molecules break apart  for ...
<ul><li>Organisms that use an outside energy source like the Sun to make energy-rich molecules are called  producers .  </...
Asheville's climate offers milder summer temperatures and a longer growing season than much of the country, allowing us to...
<ul><li>What is chemosynthesis? </li></ul><ul><li>Some producers make energy rich molecules using a process called chemosy...
<ul><li>Some producers do not contain chlorophyll and do not use energy from the Sun.  </li></ul><ul><li>They make energy-...
<ul><li>Organisms that cannot make their own energy-rich molecules are called  consumers .  </li></ul>Consumers   <ul><li>...
<ul><li>Herbivores are the vegetarians of the world.  They include rabbits, deer, and other plant eaters.  </li></ul>Consu...
<ul><li>Omnivores, including pigs and humans, eat mostly plants and animals.  </li></ul><ul><li>Carnivores are animals tha...
<ul><li>Decomposers, including fungi, bacteria, and earthworms, consume wastes and dead organisms.  </li></ul>Consumers
<ul><li>What is a food chain? </li></ul><ul><li>A food chain models the feeding relationship between species. </li></ul><u...
<ul><li>A food chain is a simple model of the feeding relationships in an ecosystem. </li></ul>Food Chains   <ul><li>For e...
Food chains are representatives of the relationships of living organisms in nature. Most consumers feed on multiple specie...
<ul><li>Many organisms live together and share resources in other ways.  </li></ul>Symbiotic Relationships   <ul><li>Any c...
<ul><li>What are some types of symbiosis? </li></ul><ul><li>Mutualism, commensalism, and parasitism are types of symbiosis...
<ul><li>Lichens are made up of an alga or a cyanobacterium that lives within the tissues of a fungus.  </li></ul>Mutualism...
<ul><li>A symbiotic relationship in which one organism benefits and the other is not affected is called  commensalisms  (k...
<ul><li>Roundworms, are common in puppies.  </li></ul>Parasitism   <ul><li>The roundworm attaches itself to the inside of ...
<ul><li>A rotting log in a forest can be home to many species of insects, including termites that eat decaying wood and an...
<ul><li>The presence of predators usually increases the number of different species that can live in an ecosystem.  </li><...
<ul><li>Explain why all consumers depend on producers for food. </li></ul><ul><li>Evaluate the significant role of decompo...
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Sect 14.3

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Sect 14.3

  1. 1. 6 th Grade Science Chapter 14 Interactions of Life Notes Section 14.3 Zambia’s South Luangwa National Park
  2. 2. <ul><li>What does life require? </li></ul><ul><li>All life requires a constant supply of energy. </li></ul><ul><li>How do most producers make their food? </li></ul><ul><li>Most producers make their food by a process called photosynthesis. </li></ul>Key Questions 1
  3. 3. <ul><li>Living organisms need a constant supply of energy. </li></ul>Obtaining Energy <ul><li>The energy that fuels most life on Earth comes from the Sun. </li></ul><ul><li>Most organisms use the Sun’s energy to create energy-rich molecules through the process of photosynthesis. </li></ul>
  4. 4. <ul><li>The energy-rich molecules, usually sugars, serve as food. </li></ul><ul><li>When the molecules break apart  for example, during digestion  the energy in the chemical bonds is released to fuel life processes. </li></ul>Obtaining Energy
  5. 5. <ul><li>Organisms that use an outside energy source like the Sun to make energy-rich molecules are called producers . </li></ul>Producers <ul><li>Most producers contain chlorophyll (KLOR uh fihl), a chemical that is required for photosynthesis. </li></ul>
  6. 6. Asheville's climate offers milder summer temperatures and a longer growing season than much of the country, allowing us to grow longer, slow growing crops as well as some heat-intolerant northern species.
  7. 7. <ul><li>What is chemosynthesis? </li></ul><ul><li>Some producers make energy rich molecules using a process called chemosynthesis. </li></ul><ul><li>Can consumers make their own food? </li></ul><ul><li>Consumers cannot make their food. They obtain energy from eating producers or other consumers. </li></ul>Key Questions 2
  8. 8. <ul><li>Some producers do not contain chlorophyll and do not use energy from the Sun. </li></ul><ul><li>They make energy-rich molecules through a process called chemosynthesis (kee moh SIHN thuh sus). </li></ul>Producers
  9. 9. <ul><li>Organisms that cannot make their own energy-rich molecules are called consumers . </li></ul>Consumers <ul><li>Consumers obtain energy by eating other organisms. </li></ul>
  10. 10. <ul><li>Herbivores are the vegetarians of the world. They include rabbits, deer, and other plant eaters. </li></ul>Consumers
  11. 11. <ul><li>Omnivores, including pigs and humans, eat mostly plants and animals. </li></ul><ul><li>Carnivores are animals that eat other animals. Frogs and spiders are carnivores that eat insects. </li></ul>Consumers
  12. 12. <ul><li>Decomposers, including fungi, bacteria, and earthworms, consume wastes and dead organisms. </li></ul>Consumers
  13. 13. <ul><li>What is a food chain? </li></ul><ul><li>A food chain models the feeding relationship between species. </li></ul><ul><li>What is symbiosis? </li></ul><ul><li>Symbiosis is any close relationship between species. </li></ul>Key Questions 3 The Sombrero Galaxy
  14. 14. <ul><li>A food chain is a simple model of the feeding relationships in an ecosystem. </li></ul>Food Chains <ul><li>For example, shrubs are food for deer, and deer are food for mountain lions. </li></ul>
  15. 15. Food chains are representatives of the relationships of living organisms in nature. Most consumers feed on multiple species and in turn, are fed upon by multiple other species. For a snake, the prey might be a mouse, a lizard, or a frog, and the predator might be a bird of prey or a badger.
  16. 16. <ul><li>Many organisms live together and share resources in other ways. </li></ul>Symbiotic Relationships <ul><li>Any close relationship between species is called symbiosis . </li></ul>
  17. 17. <ul><li>What are some types of symbiosis? </li></ul><ul><li>Mutualism, commensalism, and parasitism are types of symbiosis. </li></ul><ul><li>What is an organism’s niche? </li></ul><ul><li>An organism’s niche describes how an organism finds food, shelter, and avoids danger. </li></ul>Key Questions 4
  18. 18. <ul><li>Lichens are made up of an alga or a cyanobacterium that lives within the tissues of a fungus. </li></ul>Mutualism <ul><li>Both organisms benefit from this association. </li></ul><ul><li>A symbiotic relationship in which both species will benefit is call mutualism. </li></ul>
  19. 19. <ul><li>A symbiotic relationship in which one organism benefits and the other is not affected is called commensalisms (kuh MEN suh lih zum). </li></ul>Commensalism
  20. 20. <ul><li>Roundworms, are common in puppies. </li></ul>Parasitism <ul><li>The roundworm attaches itself to the inside of the puppy’s intestine and feeds on nutrients in the puppy’s blood. </li></ul>
  21. 21. <ul><li>A rotting log in a forest can be home to many species of insects, including termites that eat decaying wood and ants that feed on the termites. </li></ul>Niches <ul><li>An organism’s niche is its role in its environment  how it obtains food and shelter, finds a mate, cares for its young, and avoids danger. </li></ul>
  22. 22. <ul><li>The presence of predators usually increases the number of different species that can live in an ecosystem. </li></ul><ul><li>Predators limit the size of prey populations. </li></ul>Predator and Prey
  23. 23. <ul><li>Explain why all consumers depend on producers for food. </li></ul><ul><li>Evaluate the significant role of decomposers in Earth’s ecosystems. </li></ul><ul><li>Compare and contrast the terms habitat and niche. </li></ul><ul><li>A parasite can obtain food only from a host organism. Explain why most parasites weaken, but do not kill, their hosts. </li></ul>Questions Section 14.3

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