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WorksheetsEcosystem #2
Total questions: 10
Worksheet time: 3mins
Name
Class
Date
1.
An ecosystem created when freshwater rivers meet ocean waters is a/an _________________.
a)
pond
b)
lake
c)
estuary
2.
The percentage of earth that is covered with saltwater is ______________.
a)
75%
b)
50%
c)
80%
3.
A consumer that eats ONLY producers is a/an _________________.
a)
omnivore
b)
carnivore
c)
herbivore
4.
The type of relationship between a tick and a dog is called ___________________.
a)
mutualism
b)
parasitic
c)
predator
5.
Interconnected food chains are ___________________.
a)
food web
b)
balance of nature
c)
symbiotic
6.
The source of all energy in a food web is the ____________________.
a)
sun
b)
producer
c)
consumer
7.
Which of the following is NOT a biotic factor in an ecosystem?
a)
grass
b)
tree
c)
soil
8.
An ecosystem with very fertile soil, cold winters, and hot summers is ___________________.
a)
grassland
b)
desert
c)
rainforest
9.
Another name for a herbivore in a food chain is a ___________________.
a)
prey
b)
producer
c)
primary consumer
10.
Which is NOT an aquatic ecosystem?
a)
grassland
b)
ocean
c)
pond
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