Organisms
A species that only eats meat.
Carnivore
What does biodiversity mean?
The number and variety of different species in an area.
The type of symbiosis in which both species benefit each other.
mutualism
What is a niche?
A role a species plays in a community
How do ecosystems change?
Slowly
The organisms in a food web that recycle nutrients are the ___________.
Decomposers
What does adaptation mean?
The behaviors and physical characteristics that allow organisms to live successfully in their environments.
A series of events in an ecosystem in which organisms transfer energy by eating and being eaten.
What is Parasitism?
An organism living inside or on another organism
If you reduce resources in an ecosystem, what happens?
It could decrease the population of a species.
Which organisms use the sun’s energy and make it available to other organisms?
Producers
WHat does survival mean?
The behaviors and physical characteristics that allow organisms to live successfully in their environments.
How can humans negatively affect biodiversity?
removing natural resources
What is an ecosystem?
a community of organisms that live in a particular area, along with their non-living environment
Something in an ecosystem that is living.
Biotic factor
A species that only eats vegetation.
herbivore
What does economic value mean?
People get an income from profiting from a healthy ecosystem, such as selling eggs.
What helps to keep an ecosystem diverse or varied?
Genetic varation
What is a keystone species?
an organism that helps define an entire ecosystem.
Something in an ecosystem that is non-living.
Abiotic factor
Organisms that eat other organisms to meet their food needs.
What does species extinction mean?
When an entire species of organism becomes in danger of extinction.
The struggle between organisms to survive as the use the same limited resources.
Competition
What is niche diversity?
When an ecosystem has many different species that belong to different niches, which balances healthy ecosystems.
The number of genes within a population affects the species' ability to survive. If there is a high ____________ ____________, then the species will have a greater ability to survive changing environmental conditions.
genetic diversity