1.1 - Ecosystems Flashcards
What is a population?
A group of individuals of the same species.
What is a community?
All living organisms in an area.
What is an ecosystem?
All living and nonliving things in an area.
What is a biome?
A large area with similar climate conditions that determine plant and animal species there.
What is competition?
Organisms fighting over a resource like food or shelter.
What is predation?
One organism using another for energy.
What is mutualism?
A relationship that benefits both organisms.
What is commensalism?
A relationship that benefits one organism and does not impact the other.
What are herbivores?
Organisms that eat plants for energy; they are predators.
What are true predators?
Organisms that kill and eat prey for energy; they are carnivores.
What is a parasite?
An organism that uses a host for energy, often without killing the host and often living inside the host.
What is a parasitoid?
An organism that lays eggs inside a host organism; the eggs hatch and larvae eat the host for energy.
What is symbiosis?
Any close and long-term interaction between two organisms of different species.
What is lichen?
A composite organism of fungi living with algae; it provides nutrients for algae while receiving sugars (energy).
What is resource partitioning?
Different species using the same resource in different ways to reduce competition.
