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Multiple Choice
Fish that feed on sediment will most likely be found in which type of rivers?
A
fast-flowing
B
oligotrophic
C
turbid
D
clear
Verified step by step guidance
1
Understand the key terms in the question: 'sediment' refers to particles like sand, silt, and organic matter that settle at the bottom of a body of water. Fish that feed on sediment consume these particles or organisms living within them.
Consider the characteristics of different river types: Fast-flowing rivers tend to have clear water because the strong current prevents sediment from settling. Oligotrophic rivers are nutrient-poor and often clear, with little sediment accumulation.
Focus on the term 'turbid': Turbid water is cloudy or murky due to a high concentration of suspended particles, including sediment. This environment is ideal for sediment-feeding fish because it provides abundant food sources.
Eliminate incorrect options: Fast-flowing and oligotrophic rivers are less likely to have significant sediment accumulation, making them unsuitable for sediment-feeding fish.
Conclude that sediment-feeding fish are most likely to be found in turbid rivers, where sediment is abundant and easily accessible as a food source.