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Relationships
What are the relationships between organisms in an ecosystem?
Vocabulary (Add to the top of the page)
• Niche:
Vocabulary (Add to the top of the page)
• Niche: the role or “job” an organism plays in an ecosystem
Producer/Consumer Relationships
• Producer – all _______________; trap energy from the sun
Ex: plants, green algae, phytoplankton
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all _______________: they ingest food containing the
sun’s energy
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
• Primary consumers:
• Herbivores – eat ___________
• Ex: rabbit, caterpillar
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
• Primary consumers:
• Herbivores – eat plants
• Ex: rabbit, caterpillar
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
• Primary consumers:
• Herbivores – eat plants
• Ex: rabbit, caterpillar
• Secondary, tertiary, etc….consumers
• Carnivores – eat __________
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
• Primary consumers:
• Herbivores – eat plants
• Ex: rabbit, caterpillar
• Secondary, tertiary, etc….consumers
• Carnivores – eat meat
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
• Primary consumers:
• Herbivores – eat plants
• Ex: rabbit, caterpillar
• Secondary, tertiary, etc….consumers
• Carnivores – eat meat
• Omnivores – eat ___________
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
• Primary consumers:
• Herbivores – eat plants
• Ex: rabbit, caterpillar
• Secondary, tertiary, etc….consumers
• Carnivores – eat meat
• Omnivores – eat both (plants and meat)
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
• Primary consumers:
• Herbivores – eat plants
• Ex: rabbit, caterpillar
• Secondary, tertiary, etc….consumers
• Carnivores – eat meat
• Omnivores – eat both (plants and meat)
• Decomposers – _________________dead matter into simpler molecules that
can be absorbed
• Ex: fungi
Producer/Consumer Relationships
• Producer – all autotrophs; trap energy from the sun
Ex: plants, green algae, phytoplankton
• Consumer – all heterotrophs: they ingest food containing the sun’s
energy
• Primary consumers:
• Herbivores – eat plants
• Ex: rabbit, caterpillar
• Secondary, tertiary, etc….consumers
• Carnivores – eat meat
• Omnivores – eat both (plants and meat)
• Decomposers – break down dead matter into simpler molecules that can be
absorbed
• Ex: fungi
Predator/Prey  Predation
• Relationship in which one organism _____________ and one
___________
Predator/Prey  Predation
• Relationship in which one organism benefits and one dies
Predator/Prey  Predation
• Relationship in which one organism benefits and one dies
• Living organism =
Predator/Prey  Predation
• Relationship in which one organism benefits and one dies
• Living organism = predator (hunting, hunter)
Predator/Prey  Predation
• Relationship in which one organism benefits and one dies
• Living organism = predator (hunting, hunter)
• Dead organism =
Predator/Prey  Predation
• Relationship in which one organism benefits and one dies
• Living organism = predator (hunting, hunter)
• Dead organism = prey (hunted)
Predator/Prey  Predation
• Relationship in which one organism benefits and one dies
• Living organism = predator (hunting, hunter)
• Dead organism = prey (hunted)
• Ex: Lion and Zebra
Predator/Prey  Predation
• Relationship in which one organism benefits and one dies
• Living organism = predator (hunting, hunter)
• Dead organism = prey (hunted)
• Ex: Lion and Zebra
• Other examples?
Symbiosis
• ________________________________________________________
________________________________________________________
Symbiosis
• Two or more different species living together (interactions)
Symbiosis
• Two or more different species living together (interactions)
• 3 relationships:
Symbiosis
• Two or more different species living together (interactions)
• 3 relationships:
• Mutualism
Symbiosis
• Two or more different species living together (interactions)
• 3 relationships:
• Mutualism
• Parasitism
Symbiosis
• Two or more different species living together (interactions)
• 3 relationships:
• Mutualism
• Parasitism
• Commensalism
Note (add to the page somewhere)
• Neutralism IS NOT a symbiotic relationship
Mutualism
• Relationship in which both organisms ______________
Mutualism
• Relationship in which both organisms benefit
Mutualism
• Relationship in which both organisms benefit
• Ex: cows and white headed cow bird (bird eats insects off cow,
preventing illness)
Mutualism
• Relationship in which both organisms benefit
• Ex: cows and white headed cow bird (bird eats insects off cow,
preventing illness)
• Other examples?
Parasitism
• Relationship in which one organism ____________ and one is
______________
Parasitism
• Relationship in which one organism benefits and one is harmed
Parasitism
• Relationship in which one organism benefits and one is harmed
• Ex: fleas and dogs, mosquitoes and humans
Parasitism
• Relationship in which one organism benefits and one is harmed
• Ex: fleas and dogs, mosquitoes and humans
• Other examples?
Commensalism
• Relationship in which one organism ____________ and the other
organism is ___________________________________
Commensalism
• Relationship in which one organism benefits and the other organism
is neither helped nor harmed
Commensalism
• Relationship in which one organism benefits and the other organism
is neither helped nor harmed
• Ex: whales and barnacles
Commensalism
• Relationship in which one organism benefits and the other organism
is neither helped nor harmed
• Ex: whales and barnacles
• Other examples?
Competition __________________________
Competition for the same limiting resources
Competition for the same limiting resources
• Instraspecific Competition– organisms of the __________ species
fight for the same resource.
Competition for the same limiting resources
• Intraspecific competition – organisms of the same species fight for
the same resource.
• Ex: two bucks competing for a mate
Competition for the same limiting resources
• Intraspecific competition – organisms of the same species fight for
the same resource.
• Ex: two bucks competing for a mate
• Interspecific competition – organisms of _____________ species fight
for the same resource
Competition for the same limiting resources
• Intraspecific competition – organisms of the same species fight for
the same resource.
• Ex: two bucks competing for a mate
• Interspecific competition – organisms of different species fight for the
same resource
• Ex: seals and sea lions compete for fish
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