science Flashcards
Ecology
the study of interactions between organisms and the environment
Species
one type of organism
Biotic factors
All the parts of the environment that are living
Abiotic factor
All the parts of the environment that are nonliving
Habitat
all the populations that live in the same place at the same time
Ecosystem
a community interacting with the abiotic parts of its environment, (all the biotic and abiotic parts of an area)
Energy Pyramid
Diagram showing trophic level / level in food chain
sun
main source of energy for all living things.
Producer
makes its own food (autotroph)
Photosynthesis
the process of food making in producers
Sunlight + CO₂ (carbon dioxide) + H₂O (Water) →
sugar (energy) + O₂ (Oxygen)
consumer
an organism that eats other organisms (heterotroph)
Herbivore
An organism that eats other organisms
Carnivore
An organism that eat other animals
Scavenger
An organism that eats organisms that are already dead
Omnivore
an organism that eats both plants and animals.
Decomposer
an organism that breaks down the remains of dead plants and animals (recycles)
Food Chain
the transfer of energy (food) from one organism to another.
Food Web
when different chains overlap.
Competition
The contest among organisms to get all they need to survive.
Niche
the role (job) a species has within a community
Prededor
an organism that kills and eats prey to obtain energy
prey
An organism that gets eaten by a predetor
Limited factors
an environmental factor that causes the population to decrease
Symbiosis
A relationship where food, shelter, support, or transportation is provided for one or both organisms.
