Vocab 1
Animals who primarily eat plants
Herbivores
Animals who primarily eat meat
Carnivores
This will happen to the number of prey in an ecosystem if the number of predators increases
Decrease
This organism is the most important part of the energy pyramid/food web for transferring energy to other organisms.
Producers
Grass → Mouse → Snake → Hawk
Which organism is the producer?
Grass
All the organisms in an area and the abiotic factors they live in
An ecosystem
The energy model that shows energy transfer in a whole ecosystem.
Food web
The organism that is the final ending point where there is no more energy transfer is called
The Apex predator
This level of consumers are usually herbivores
Primary consumers
Grass → Mouse → Snake → Hawk
Which organism is the secondary consumer?
Snake
Organisms that create their own food/energy
Producers or Autotrophs
Organisms that eat other things for energy
Consumers or heterotrophs
An organism that is a carnivore in a food chain would be part of what trophic level?
A secondary consumer or higher
Why does an ecological pyramid create a pyramid? or What happens to create the pyramid?
Energy is lost at each level so there is less biomass/organisms at each level.
Grass → Mouse → Snake → Hawk
Which organism is the primary consumer?
Mouse
The model that shows the transfer of energy between single organisms
Food chain
The model that shows the amount of energy transfer and biomass for each trophic level
Ecological Pyramid
This is what would happen to the food chain if the producer was wiped out or died
Each level of consumer from primary to tertiary would no longer have a food source and the food chain would collapse
In an ecological pyramid, the fourth level of the pyramid would contain what type of organisms, give three terms to describe them?
Tertiary Consumers, consumers, Heterotrophs, and either an omnivore or carnivore
Which organism is most essential for the survival of the rest of the organisms, without it the rest of the foodchain will die?
Grass
Animals that eat both plants and meat
Omnivore
This is the difference between food chains and food webs
Food chains show energy transfer between single organisms while food webs show energy transfers between food chains (many of the organisms in an ecosystem)
Draw and completely label a food chain that has 4 organisms included in it.
Answers vary
Draw and completely label an ecological pyramid that has 4 organisms included in it.
Answers vary
What is the main source of energy for the entire ecosystem --> This starts where ALL organisms in the ecosystem get their energy
The Sun. The Sun gives energy through light to producers. No sun = no energy for producers. No producers = no ecosystem