Unit 10: Ecology - Notes 2 Flashcards
What are the levels of Biological Organization? In order!
- Organism
- Population
- Community
- Ecosystem
- Biome
What is organism?
individual living thing
What is population?
group of same-species organisms in same area
What is community?
more than one population in same area
What is ecosystem?
all of the biotic and abiotic factors in the same area
What is biome?
a type of ecosystem with similar biotic and abiotic factors DUE TO CLIMATE
What is predation?
the relationship in which members of one species consuming another species.
What is predator mean?
the species consuming members of another species
What is prey mean?
the species being consumed
Why is predator-prey relationships so important?
they keep the populations of both species in BALANCE.
What happens if the prey population increases?
more food for the predators
So if predator populations increase due to food increase, what happens?
the prey population decreases! Cycle continues
What is limiting factors?
factors that limit the growth or development of an organism, population or process.
What is a keystone species?
a (usually predator) species that plays an especially important role in the ecosystem and is the glue that holds the whole thing together!!
What would happen to ecosystem if something happens to a keystone species?
major changes to this species would dramatically affect the rest of the ecosystem. Different populations in trophic levels.
