To determine which of the options shows a correct energy flow through an ecosystem, we need to look for a sequence that represents a food chain, where energy moves from producers to consumers.
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Hyena > Mongoose > Mouse > Grass: This path does not correctly show energy flow, as grass (a producer) is not eaten by a consumer like a hyena.
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Grasses > Termite > Grasshopper > Monkey: This sequence starts with grass (a producer), which is consumed by termites (herbivores), then grasshoppers (which may eat grass or other vegetation), and finally a monkey (a higher-level consumer). However, looking at the flow, grasshoppers typically do not eat termites.
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Acacia Trees > Giraffe > Lion > Vulture: This shows a correct energy flow. Acacia trees are producers, giraffes eat the trees (herbivore), lions prey on giraffes (carnivore), and vultures can feed on the remains of lions (scavenger). This sequence appropriately follows the energy flow from producer to various levels of consumers.
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Grasses > Termite > Monkey > Eagle: This sequence has an issue, as monkeys generally do not consume termites and thus breaks the energy flow.
Based on this analysis, the best option demonstrating a proper energy flow is:
Acacia Trees > Giraffe > Lion > Vulture.