Science Unit 6
all the living and nonliving things in an area interacting with each other.
the study of how living things and their environment interact.
|abiotic factor|| |
a NON-living part of an ecosystem.
|biotic factor|| |
a LIVING part of an ecosystem.
all the organisms of ONE SPECIES that live in an AREA at the same time.
all the POPULATIONS living in an area.
the AREA in which an organism lives.
the ROLE an organism has in its ecosystem.
Plants and algae produce oxygen and food from sunshine, carbon dioxide, and water (like prairie grass!)
Animals eat plants (and other animals) and give off carbon dioxide.
Break down dead plants and animals into useful things like mineras that enrich soil.
|food chain|| |
the path of energy in food from one organism to another.
|food web|| |
the overlapping food chains in a community.
an animal that eats plants.
an animal that eats other animals.
an animal that eats both plants and animals.
a living thing that hunts other living things for food.
a living thing that is hunted for food.
an animal that feeds on the remains of dead animals.
|energy pyramid|| |
an illustration that shows that, as you go up from producers through consumers in a food chain, less and less energy is available because each level has used up some of the energy.
|water cycle|| |
the continuous movement of water between Earth's surface and the air, changing from liquid to gas to liquid.
|carbon cycle|| |
the continuous transfer of carbon between the atmosphere and living things.
|nitrogen cycle|| |
the transfer of nitrogen from the atmosphere to plants and back to the atmosphere and directly into plants again.