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21 Cards in this Set

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  • Back
  • 3rd side (hint)
What is a system?
a group of parts that work together as a unit
Example= everything in a yard is a system
In an _________ system, things from the outside come in (INPUT)and things are let out.(OUTPUT)
What does stability in a system mean?
A system in balance (If something is added it is later taken out!)
A group of the same species living in the same place at the same time is a _________________ .
The deepest part of the ocean is called the ____________________ .
open-ocean zone
The ___________ is a shallow area of ocean water that provides a habitat for many forms of life.
near-shore zone
Groups of living things and the environment they live in make up an ________ .
A group of the same species living in the same place at the same time is a ___________ .
A forest may have several ____________ of different kinds of trees.
A _________ is made up of all the populations that live in the same area.
Animals in a c__________ eat plants and other animals in the c__________ .
An environment that meets the needs of an organism is called its _______ .
Their h______ is their home.
Part of a bird's _______, or role, in their habitat is to eat insects.
Producers, consumers, and decomposers are all part of a ______ ________.
food chain
Green plants are ________ because they make their own food.
______ eat other living things for energy.
They c_______ other living things!
________ feed on the wastes of plants and animals or on dead bodies.
D_____ feed on Dead animals.
A _____ ______ shows how food chains are connected.
food web
The _______ in an area is the average weather over a long time.
A rain forest has a great ______ (variety) of plants and animals.
What is salinity?
amount of salt in the water
A ______ is a group of parts that work together as a unit.
Example: Everything in a yard is a s____.
Over time the changes in a system cancel each other out. This is called ________ . This keeps the system balanced.
Example: Plants in a yard stop growing in the winter but begin to grow again in the spring. This shows s_______ in the system.