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WorksheetsTrophic Level and Food Chains
Total questions: 15
Worksheet time: 14mins
Name
Class
Date
1.
What does a primary consumer eat?
a)
tertiary consumers
b)
secondary consumers
c)
producers
d)
decomposers
2.
What is missing from this food chain?
Grass > Grasshopper > Bird > Snake
Grass > Grasshopper > Bird > Snake
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
3.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
4.
Which is the smallest level of an ecosystem?
a)
organism
b)
population
c)
community
d)
ecosystem
5.
an organism that can produce its own food through photosynthesis
a)
consumer
b)
heterotroph
c)
autotroph
d)
herbivore
6.
Which of the animals in this food web is a secondary consumer?
a)
Hawk
b)
Lizard
c)
Mouse
d)
Snake
7.
Which animal is a tertiary consumer?
a)
Jackal
b)
Wild Cat
c)
Lion
d)
Owl
8.
Which organism is NOT a heterotroph?
a)
Grass
b)
Python
c)
Frog
d)
Eagle
9.
The smallest part of the ecosystem is always the ____________.
a)
Primary Producers
b)
Secondary Consumers
c)
Primary Consumers
d)
Tertiary Consumers
10.
Elodea is an autotrophic organism which produces sugars at the bottom of some freshwater food chains. Elodea would best be classified as -
a)
producers
b)
herbivores
c)
carnivores
d)
omnivores
11.
How much energy is passed from one trophic level to the next?
a)
1%
b)
10%
c)
50%
d)
100%
12.
each level of the food chain is called a ________ level.
a)
Food-eating
b)
Trophic
c)
Sunlight
d)
Energy
13.
Which best describes what a food chain shows you?
a)
Energy flow through an ecosystem
b)
Food flowing through an ecosystem
c)
Consumers going into other consumers
d)
Who eats who
14.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
15.
If the producer has 20,000 kJ of energy, how much energy should the secondary consumer have?
a)
2,000 kJ
b)
500 kJ
c)
200 kJ
d)
1,000 kJ
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