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Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks: [add image]
A
A – Rock minerals, B – Detritus, C – Litter fall, D – Producers
B
A – Litter fall, B – Producers, C – Rock minerals, D – Detritus
C
A – Detritus, B – Rock minerals, C – Producer, D – Litter fall
D
A – Producers, B – Litter fall, C – Rock minerals, D – Detritus
Detailed Solution
Phosphorus is released from rock minerals (B) by weathering into the soil solution and is taken up by producers (C).
It passes to consumers, returns through litter fall (D) to detritus (A), and decomposition sends it back to the soil solution.
It passes to consumers, returns through litter fall (D) to detritus (A), and decomposition sends it back to the soil solution.