Sea gulls prey on snails on the rocky sea coast. the snails vary in color from solid brown to brown and tan striped. the birds suck the soft snail bodies out of the shells and leave the shells behind on the rocks. scientists picked up 500 empty shells and found that 400 of the shells were solid brown and only 100 were striped. over the years, what would you expect to happen to the snail population?
a. the snails would become extinct.
b. there would be mostly brown snails.
c. there would be mostly striped snails.
d. there would be an even number of brown snails and striped snails.