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LS - Inv. 1

Living Systems - Investigation 1

TermDefinition
Algae A large plantlike group of water organisms that make their own food
Atmosphere The layer of gases surrounding Earth
Bacteria Microorganisms that act as decomposers
Biosphere A system of interacting living organisms on Earth
Carnivore An animal that eats other animals
Compost Decaying organic material
Consumer An organism that cannot make its own food. Consumers eat other organisms.
Decomposer An organism that breaks down plant and animal material into simple chemicals.
Ecosystem A community of organisms interacting with each other and with the nonliving enviornment
Energy What cells need to do work
Food Chain A description of the feeding relationships between organisms in an environment
Food Web The feeding relationships among all the organisms in an ecosystem. Arrows show the flow of matter and energy from one organism to another.
Geosphere (Lithosphere) Earth's core, mantle, and crust
Herbivore An animal that eats plants
Hydrosphere The interacting water on, under, and above Earth's surface
Interact To act upon one another
Living Alive
Microorganism Microscopic organisms such as bacteria and fungi
Nonliving Not alive
Omnivore An animal that eats plants and animals
Predator An animal that preys on other animals
Producer An organism, such as a plant or algae, that makes it's own food
Recycle To use again
Redworm An earthworm that lives on the surface of the soil
Subsystem A small system that is inside a larger system
System A collection of interacting parts
Created by: cbuzynski