APFIVE Arctic Food Web Trophic Levels
A study from 1990 to 2020 documented a 40% decline in Arctic cod populations in areas with significant sea ice loss. This population decline would most directly impact which of the following trophic levels in the Arctic food web?
A
Secondary consumers like ringed seals
B
Tertiary consumers including killer whales
C
Primary producers such as phytoplankton
D
Decomposer organisms in Arctic sediments
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