i think four phenotypes can be produced
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:
All of them are correct except for, "they repair carbon dioxide for photosynethesis because they just don't.
Explanation:
They don't
Lichen will colonize the bare rock.
