Living and Nonliving
Deer, oak trees, and worms (living things) are examples of what in an environment?
Biotic factors
An organism that breaks down organic material
Decomposer
Makes it's own food
Autotroph/producer
A diagram showing the energy flow between all the organisms within an ecosystem.
Food web
A species that naturally occurs and persists within a specific region or ecosystem.
Temperature, soil, and rain are all examples of what in an environment?
Abiotic factors
A species that many other species depend on
Keystone Species
Eats other things for energy
Heterotroph/Consumer
Arrows represent what in a food web model?
The flow of matter/energy
Give one example of an invasive species.
Argentine ants, cane toads, ivy, etc.
An important part of ecosystems are the ___________ between living things and the environment.
relationships
Predator
A group of the same species within an area
Population
In a food web, how many levels are there?
4
A species that is introduced to an ecosystem and cause harm to the environment, the economy, or human health
Invasive Species
Name two biotic factors you can identify in a desert ecosystem.
Cacti, lizards, etc.
What type of keystone species would a beaver be?
Ecosystem engineer
A community of living organisms interacting with each other and their physical environment within an area
Ecosystem
A simple ordered sequence of 3 to 4 organisms connected by arrows.
Food chain
Plants and animals living in an area that they don't naturally exist in. This term is used regardless of their effect on the ecosystem.
Non-native species
Name one abiotic factor you can specifically find in a rainforest ecosystem.
Humidity, high rainfall, high temperature, limited sunlight, low wind, etc.
What type of keystone species would a hummingbird and flowers be?
Mutualists
The number of individuals in an area of a specific size
population density
A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
Energy pyramid
Why are invasive species often successful in new ecosystems?
No predators, lots of food options