Unit One, Topic 4 Flashcards
biotic
living things in the environment
biotic examples
humans, plants, birds, insects
a term applied to no living things such as air, water and soil
abiotic
a role that is undertaken by an organism in an ecosystem
niche
producer
plants that use energy from the sun to make their own food
organisms that eat the food made by producers are called
consumers
3 types of consumers
- Herbivore
- Omnivore
- Carnivore
Organisms that break down cells or dead waste materials and absorb their nutrients are called
decomposers
bacteria and fungi are 2 types of
decomposers
Herbivore
an organism that eats only plants
an example of an herbivore is
an elephant
an organism that eat animals
carnivore
Example of a carnivore
wolf
Omnivore
an animal that eats other animals and plant material
an organism that catches and eats other organisms is called
a predator
prey
an organism that is caught and eaten by another organism
the total mass of living matter in therms of dry weight
biomass
Why are Koalas endangered?
Eucalyptus forests were cut down to make room for farms and other developments
food chain
a model that shows how energy is transferred from organism to organism
Pyramid of Numbers
the size of each level of organisms goes from big to small, depending on the number of organism involved
clean up squads
organisms that break down dead materials
