Ecosystems
This includes all living and nonliving things working together in one area
What is the direction energy moves?
Arrows in food chains
An animal that hunts other animals
The bottom level of an energy pyramid contains these organisms
Producers
A wildfire in an example of this type of ecosystem disruption
Natural disruption
What are abiotic factors?
Water, sunlight, soil, and air are examples of these
A rabbit is in a food chain in usually this type of consumer
Primary consumer
An animal being hunted
Prey
This level of the pyramid has the LEAST energy
Top level/apex
Cutting down forests is called this
Deforestation
Plants are called this because they make their own food
Producers
This shows MANY connected food chains
What is a food web?
This happens to prey populations if predators disappear
Population grows too large
True or False: More energy is available at the top of the pyramid
False
An organism that does not naturally belong in an ecosystem is called this
Invasive species
This process allows plants to use sunlight to make food
Photosynthesis
In the chain
Grass -> Mouse -> Snake -> Hawk
What type of consumer is the snake?
Secondary consumer
A shark, eagle, and polar bear are example of this
Apex predators
Energy is lost as it moves through each trophic level
Name TWO human causes of ecosystem disruption
Pollution, deforestation, overfishing
Nutrients would not return to the soil
Why is the food web more realistic than a food chain
Organisms eat more than one thing and belong to multiple food chains
Why are predators important to ecosystems
They help keep populations balanced
Name the trophic levels in order from bottom to top
Explain what could happen if one species disappears from a food web
Food webs change, popluations grow or shrink, and the ecosystem becomes unstable