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UNIT 5 ECOSYSTEMS. REVIEW EXERCISES

1. Complete the following ch!t with the wo!"# $elow.

C!op fiel"#%#e#on#%!&$$i#h%long pe!io"# of time%!o"# n" $&il"ing#%!efo!e#ttion

'!mf&l mn%

m"e

Ecologicl $lnce '&mn infl&ence (eneficil mn%m"e

). Complete the following #entence# with the wo!"# $elow*

The h$itt%+!o"&ce!#%Eco#,#tem%Comm&nit,%S-nnh#%C!op fiel"#%Rinfo!e#t#

In te!!e#t!il eco#,#tem# we cn fin"///////..n"//////..

$ ////////////!e incl&"e" in h&mn infl&ence.

c Eco#,#tem i# m"e of///////////////..

" 0 g!o&p of "iffe!ent pop&ltion# me &p ////////////..

e The!e !e lot of #pecie# in n////////////////

2. The!e !e two t,pe# of eco#,#tem. Nme them n" w!ite thei! min

ch!cte!i#tic#.

3. Complete the following #entence.

4i-ing thing# n" the !eltion#hip# $etween li-ing thing# n" thei! h$itt !e incl&"e in

n/////////////

5. Wht me# pop&ltion

6. Tl $o&t the foo" chin# in n eco#,#tem.

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7. Wht cn we fin" in te!!e#t!il eco#,#tem#

8. The!e !e two t,pe# of 9&tic eco#,#tem#. Nme them n" w!ite #ome

ch!cte!i#tic#.

:. Nme onl, ;witho&t ch!cte!i#tic# ll the chnge# tht te plce in eco#,#tem#.