C
Arthropods are fed on (or preyed on) by the animals and birds according to the food web. Therefore, a decrease in arthropod population will cause a subsequent decrease in that of animals too. This is because the animal population will compete for the fewer arthropods. This increased competition will lead to a survival of the fittest and a subsequent decrease in the animal population.
Explanation:
A food web is used to indicate the cycle of food, through feeding relationships, in an ecosystem hence concomitantly also show the flow of energy in the ecosystem. Food webs are made of several to many interlinked food chains.
Usually the primary producers are at the bottom of the food chain while tertiary consumers are at the top.
Learn More:
For more on food webs check out;
brainly.com/question/11224588
brainly.com/question/13497058
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