abhimahna wrote:
Madhavi1990 wrote:
Not clear - why is B incorrect? - isnt it a present-tense activity of hormones that adjust permeability? (I mean this phenomenon is till happening)?
A would mean that amphibians developed it at a point in time (in the past) and that has adjusted the permeability of the skin?
Expert advice needed, would like to understand the flaw in my understanding here![Image]()
A would mean that amphibians developed it at a point in time (in the past) and that has adjusted the permeability of the skin?
Expert advice needed, would like to understand the flaw in my understanding here
Hi Madhavi1990
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