Feeding relationships

• What are autotroph producers?

  Self-feeding organisms
• What are photoautotrophs?


  Organisms that use light as a self-feeding source
• What are chemoautotrophs?


  Organisms that are self-feeding, but don't rely on light. For example coral reefs deep in the ocean
• What are consumers?


  Animals that eat plants and other animals
• What are heterotrophs?


  Organisms that obtain their energy by consuming other organisms.
• What are trophic levels?

  Different positions in the food web (primary, secondary, tertiary consumers)
• what are sapotrophs?


  Organisms that feed on dead organic matter
• What are holozoic organisms?


  Organisms that eat others
• What is biomass?


  Organic material
• Food web

  A) 10%

  B) biomass

  C) trophic

  D) producer

  E) Primary consumer

  F) secondary consumer

  G) tertiary consumer

  H) 90%

  I) biomass

  J) lost

  
• How much of the energy from the sun is the right wavelength for plants to absorb?

  50%
• How much light is reflected from the leaf?

  5%
• How much light is lost through transmission?

  5%
• What is transmission?


  Where light goes straight through the leaf without being absorbed
• How much light is absorbed by the leaf and used in photosynthesis?

  40%
• How much energy is lost in evaporation and photosynthesis?

  30%
• How much energy is lost in respiration?

  6%
• What does GPP stand for?

  gross primary productivity
• What is gross primary productivity?

  The rate at which products, such as glucose are formed
• What is the equation to work out net primary productivity?

  NPP = GPP -R
• What is the equation to calculate photosynthetic efficiency?

  A) quality

  B) light energy

  C) product

  D) quantity

  E) plant

  F) 100