Question

a population of finch birds with medium sized beaks colonizes an island with plants producing medium and large sized seeds. After a disease wipes out all the plants with medium sized seeds , what is most likely to happen

Answer 1

If medium sized seeds are the only food that finch birds eat, then all the finch birds would die since their are no more medium sized seeds and they can't eat large sized seeds because their beaks are not large enough, OR the finch birds will have to find something else to feed on.