Explain the statement that if there is a variation in abundance in one link of a food chain then it will cause variations in other links.
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Explanation:
A food chain describes how energy and nutrients move through an ecosystem. At the basic level there are plants that produce the energy, then it moves up to higher-level organisms like herbivores. ... In the food chain, energy is transferred from one living organismthrough another in the form of food.
Food Chains on Land
Nectar (flowers) - butterflies - small birds - foxes.
Dandelions - snail - frog - bird - fox.
Dead plants - centipede - robin - raccoon.
Decayed plants - worms - birds - eagles.
Fruits - tapir - jaguar.
Fruits - monkeys - monkey-eating eagle.
Grass - antelope - tiger - vulture.
Grass - cow - man - maggot.
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