Name_____________________________________________

Ecosystems Review

Part I: Use the letters of the terms to match its meaning.

L		1. Variety of plants and animals
H		2. Role of an organism in its habitat
D		3. Group of the same species living in the same place at the same time
C		4. System made up of living things and their environment
M		5. Amount of salt in something
I		6. Living things that can make their own food
E		7. Group of organisms living together and interacting
J		8. Living thing that eats other living things
A		9. Group of parts that work as a unit
F		10. Place that meets an organism’s needs
B		11. Property of a system in balance
G		12. Living things that breaks down dead plants or animals for food
K		13. Average weather of a place over a long time

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A. system	B. stability	C. ecosystems	D. population
E. community	F. habitat	G. decomposer	H. niche
I. producer	J. consumer	K. climate	L. diversity
M. salinity

Part II: Fill in the Blank with a science term

1. Producers , consumers, and decomposers make up the three levels of a FOOD CHAIN.
2. Most natural systems have patterns that give them STABILITY.
3. Tropical rain forests and coral reefs are ECOSYSTEMS that have a large variety of plants and animals.
4. The most basic part of an ecosystem are LIVING THINGS and NONLIVING THINGS.
5. In a mangrove swamp, the kinds of plants that can live there are limited by SALT.

Part III. Write true or false for the following sentence.

FALSE		1. Ecosystems include a few living things because the ecosystems have lots of space, food, and shelter.
TRUE		2. A population is part of a community.

Part IV: Choose the letter of the term that best completes the sentence

1. The deepest part of the ocean is the __Q__.
2. The narrow strip of land that is covered by ocean water during high tides is the ___P____.
3. A diagram that shows how different food chains connect and overlap is called a ____O____.
4. The shallow area of ocean water that provides a habitat for many forms of life is the ___R___.
5. A diagram that shows how food energy is passed from one ocean organism to another along a food chains is an ___N__.

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N. energy pyramid	O. food web	P. intertidal zone
Q. open-ocean zone	R. near-shore zone