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7.12A Food Chains and Food Webs

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Last updated about 6 hours ago
25 questions
Note from the author:
diagram the flow of energy within trophic levels and describe how the available energy decreases in successive trophic levels in energy pyramids;
diagram the flow of energy within trophic levels and describe how the available energy decreases in successive trophic levels in energy pyramids;

Please watch BOTH videos. They contain dfferent content and you must know both.

Use the following interactive website to practice identifying the pieces of a food chain.

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Question 1
1.

Plants convert ______ energy into chemical energy in the form of glucose (carbohydrate).

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Question 2
2.

At which level of the energy pyramid would most biomass be found?

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Question 3
3.

At which level of the energy pyramid would most energy be found?

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Question 5
5.

Which organisms in this food chain transforms energy from the Sun into food?

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Question 6
6.

Name a photosynthetic organism that produces glucose using radiant energy from the sun.

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Question 7
7.

Complete the missing organism in the food chain based on the food web to the left.
grass -> grasshopper -> __-> toad -> snake -> hawk

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Question 9
9.

Name ONE organism that directly receives energy from a consumer. (ignore the multiple choice)

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Question 11
11.

Name ONE producer from the food web. (Spelling counts!)

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Question 12
12.

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Question 18
18.

Which organism in the food chain is the producer?

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Question 19
19.

Which organism is the primary consumer?

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Question 20
20.

Which organism is the secondary consumer?

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Question 22
22.

How much energy passes to the next trophic level?

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Question 23
23.

How much energy is lost as you move through each trophic level?

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Question 24
24.

If the primary consumer had 10,000 J of energy, how much energy would pass on to the secondary consumer?

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Question 25
25.

How much energy would pass to a quaternary (4th) consumer?

Question 4
4.

What would increase the amount of energy that moves to the carnivore level in this energy pyramid?

Question 8
8.

Question 10
10.

Which THREE organisms receive energy from the mouse? (ignore the multiple choice)

Name ONE carnivore from the above food web. (Spelling counts!)
Question 13
13.

Name ONE herbivore from the above food web. (Spelling counts!)

Question 14
14.

Question 15
15.

Question 16
16.

What is the job of the bacteria? (name of the job)

Question 17
17.

What do the kangaroo rat, rabbit, and grasshopper compete for?

Question 21
21.

Which organism is the tertiary consumer?

Select the six organisms that would immediately face a reduction of energy if the grasshopper population became eliminated.
grass
rabbit
toad
garter snake
spider
preying mantis
sparrow
mouse
hawk
hognose snake
Snake
Hawk
Owl
Based on the food web above, what does the rabbit eat? Select TWO!
bacteria
rattlesnake
tarantula
hawk
rabbit
lizard
grasshopper
kangaroo rat
grass
cactus
star cactus
What do the hawk and rattlesnake compete for? Select THREE!
bacteria
rattlesnake
tarantula
hawk
rabbit
lizard
grasshopper
kangaroo rat
grass
cactus
star cactus