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24 Cards in this Set

  • Front
  • Back
Energy
The ability to do work
Photosynthesis
Producers pull carbon dioxide and water with sunlight from the atmosphere and release sugars and oxygen.
* Chemosynthesis *
Organic compounds made by bacteria using energy from chemical reactions (hydrogen sulfide) in the absence of sun.
Producer
An organism that makes it's own food - a plant.
Consumer
An organism that needs to eat other organisms for their food.
Primary Consumer
An animal that only eats primary producers (herbivore).
Secondary Consumer
An animal that either eats only consumers (carnivore) or eats consumers and producers (omnivore).
Tertiary Consumer
An animal that eats other carnivores and omnivores.
Herbivore
An animal that only eats plants (primary consumer).
Carnivore
An animals that eats only other animals (secondary consumer).
Detritivore
An animal that breaks down animal, plant, or human waste and returns carbon to the ground.
Scavenger
An animal that eats dead animals.
Decomposer
Breaks down waste and puts it and the carbon in the ground.
Food Chain
A linear display of feeding relationships.
Food Web
A diagram of many feeding relationships.
What are the three types of energy?
Solar- transferred from sunlight; Chemical- transferred from chemical bonds, can be stored/released by beings; Heat- the "waste" product
What is two ways energy can be transferred?
1. from the sun - solar
2. organisms eating each other -> directly and indirectly.
What are the four levels of feeding?
|| Tertiary Consumers ||
|| Secondary Consumers ||
|| Primary Consumers ||
|| Primary Producers ||
In a trophic pyramid, how is energy lost as you go up the levels?
Each level uses 90% of the carbon energy, and then passes 10% of the left-over energy to the next level.
What does energy turn into when it is lost?
Biomass or lost in heat.
How can the energy transfer be interrupted?
* loosing natural predators
* organisms with specific food
preferences
* toxins in the environment
Create a food chain.
Acorn → squirrel → fox
Create a food map.
* more than one organism can
eat another food type
* '→' points to eating organism
Compare and contrast a food chain and a food web.
Compare: both display feeding relationships.
Contrast: F. Chain is one chain, F. Web has many chains.