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Which one of the following statements is not correct?
Herbivores enhance the productivity of a productive ecosystem and reduce the productivity of an unproductive ecosystem.
Detritus based food chains are longer in more productive ecosystems.
Consumption efficiency of herbivores is higher in grasslands than ocean.
Production efficiency of carnivores is higher than herbivores.
Answers (1)
In general, grassland ecosystems often provide herbivores with a more easily accessible and abundant food source compared to the ocean. Grasses are typically high in nutritional content and are readily available for grazing herbivores. Additionally, grasslands usually support a diverse array of herbivores, allowing for competition and efficient resource utilization.
On the other hand, the ocean is vast and encompasses a wide range of habitats, including open water, coral reefs, and kelp forests. While some marine herbivores, such as certain fish and invertebrates, can efficiently consume algae and other plant-like organisms, the overall consumption efficiency in the ocean can be influenced by factors such as the complexity and productivity of the marine ecosystem, the availability and accessibility of food sources, and the feeding strategies of different species.
It's important to consider that the efficiency of energy transfer from primary producers (plants, algae, etc.) to herbivores can be influenced by various factors including nutrient availability, temperature, predation, and competition. Additionally, different herbivore species have evolved different physiological and behavioral adaptations to optimize their consumption efficiency in their respective ecosystems.
Therefore, it is not accurate to make a blanket statement that the consumption efficiency of herbivores is universally higher in grasslands compared to the ocean. The efficiency of consumption can vary depending on the specific ecosystem, the species involved, and other ecological factors.
Hence, the correct answer is option 3.
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