Explanation:
Only 10% of calories will be transfered to the next higher level.
5000 * 0.1 = 500.
500 calories will transfer to the secondary consumers.
I would guess that the answer would be :'<span>These organisms dig more shallow burrows than they used to.</span>' If the crabs actively dig burrows, as many crab species do, and a layer of oil has persisted in the lower soil strata, it makes sense that the crabs would be reducing the depths of their burrows to avoid contact with the oil. The other possibility is that the crabs might might migrate to deeper waters, but this is less likely because the crabs would be evolved to utilise the intertidal zone.
Answer:
1. group A
2. Productivity of workers
3. Special juice drink consumption
4. Group B
5. Refuted
Explanation: sorry if am not correct
