Archaea is one three domains of life forms (according to Carl Woese three domain system of classification) that includes prokaryotic organisms that survive under extremely harsh environmental conditions such as hotsprings, volcanic eruption, highly acidic conditions etc.
These organsisms are therefore also known as extremophiles.
Answer: Prey for the rabbits would decrease greatly; there would be less food for the frogs and voles, so their populations would decrease. This means less food for the foxes and hawks.
