Ecology 1
Ecology is the study of what (must name both things)?
Living things AND THEIR environment
What is it called when organisms fight over limited resources?
Competition
When one organism eats another it's called...
Predation
How much energy transfers to the next level in an energy pyramid?
10%
A species that harms the ecosystem and does not live there naturally is...
An invasive species
The biosphere includes
Land, water, and air, and living things
What's the name for the close relationship between species?
Symbiosis
What is an organism that makes its own food called?
A producer
What is a disturbance in an ecosystem?
An event that changes an ecosystem
Ecological succession is...
rebuilding of an ecosystem over time
What is an abiotic factor?
Something that is NOT alive
What is it called when one organism benefits and the other is harmed by their interaction?
Parasitism
What does a primary consumer eat?
Producers
What is an example of a disturbance?
A flood, fire, or other such event
Where no soil exists
A large area with a specific climate and organisms is called...
A biome
When both organisms benefit from their interaction, it's called...
mutualism
A food web shows...
all feeding relationships in an ecosystem
Biodiversity means...
Secondary succession occurs where?
Where soil remains
Which biome has very little rainfall?
Desert
A tick feeding on a dog is an example of...
parasitism
Energy pyramids show that...
energy decreases at each level
A species that strongly affects the ecosystem is a...
keystone species
Ecological sustainability means....
ecosystems staying healthy over time