WorksheetsAquatic Biomes
Total questions: 20
Worksheet time: 19mins
Name
Class
Date
1.
_________ is the amount of salt dissolved in water.
a)
Temperature
b)
Salinity
c)
Nutrients
d)
Pressure
2.
This type of organism that lives in a marine environment swims actively in open water.
a)
Plankton
b)
Benthos
c)
Nekton
d)
Decomposers
3.
______________ are bottom-dwelling organisms of the ocean, often attached to hard surfaces.
a)
Benthos
b)
Nekton
c)
Plankton
d)
Decomposers
4.
This is a smaller stream or river that feeds into larger rivers and streams
a)
oxbow lake
b)
watershed
c)
tributary
d)
pond
5.
These are partially enclosed body of water where seawater is mixed with fresh water.
a)
Stream
b)
Estuary
c)
Watershed
d)
Swamp
6.
This is the zone that low tide exposes and high tide covers.
a)
Intertidal
b)
Pelagic
c)
Benthic
d)
Neritic
7.
In which biome do these plants (seagrass) survive?
a)
wetland
b)
ocean
c)
freshwater
8.
Which biome is pictured below?
a)
ocean
b)
freshwater
c)
coral reef
d)
wetland
9.
In which biome do these plants (water lily trees/cattails) survive?
a)
ocean
b)
coral reef
c)
wetland
10.
Which biome is pictured below?
a)
freshwater
b)
wetland
c)
coral reef
d)
ocean
11.
Which brackish watery biome has some areas that are salty, and some areas that are freshwater?
a)
freshwater
b)
coral reef
c)
estuary
d)
ocean
12.
In which biome do these plants (duckweed) survive?
a)
coral reef
b)
ocean
c)
freshwater
d)
wetland
13.
Which watery biome has the lowest concentration of salt?
a)
freshwater
b)
ocean
c)
coral reef
d)
wetland
14.
Which biome is pictured below?
a)
wetland
b)
coral reef
c)
ocean
d)
freshwater
15.
Which is NOT a freshwater ecosystem?
a)
a river
b)
a lake
c)
an estuary
d)
a stream
16.
The intertidal zone of oceans
a)
surrounds continents
b)
is on the coastline
c)
has tides that rise and fall each day
d)
is the open ocean
17.
Which factor(s) affect aquatic ecosystems?
a)
depth
b)
flow
c)
nutrients
d)
all affect aquatic ecosystems
18.
Circulating water in lakes and ponds is important for distributing
a)
heat
b)
oxygen
c)
nutrients
d)
all of these
19.
Estuaries form where
a)
a lake evaporates
b)
a river meets the sea
c)
a river becomes dammed
d)
a wetland becomes filled in
20.
Which would have whales and chemosynthetic bacteria?
a)
coastal ocean
b)
intertidal ocean
c)
open ocean
100 %
