55
Exercise : Fill in the gaps with the right words :
1-Plankton teem in…………………….
2- Plankton refers to …………………………………….
3- Nekton organisms include………………………
4- In the sublittoral zone we have diverse ………….. …organisms that
vary with…………………………………
5-Among
phytoplankton
found
in
shelf
water
,
we
have
……………………….
6-Zooplankton include …………………………………
7-Plankton tend to be distributed …………… in …………………..
8-Many fish species aggregate in……………………
9-One of the advantages does schooling offres fish is ……………..
10-Among the more active hunters of schooling fish are……………..
11-Examples
of
some
important
seabirds
we
have………………………………
12-Bottom energy varies with……………………
13-High-enrgy bottom conditions prevail………………
14-Low-energy conditions prevail ……………….
15-The type of bottom sediments exerts a strong control
on……………………….
16-Filter
feeders
dominate
……………………..that
accumulate
in………………….
17-Deposit feeders dominate …………………… thata ccumulate
in……………….
18-There
are
two
different
benthic
communities
that
vary
with…………………
19-Hard bottom communities are found in……………………..