PLEASE HELPP!
Changes have been observed in the tortoise shells in a population of tortoises on the Galapagos Islands. On islands that have humid highlands with lots of grasses tortoises with domed shells are populous. However, on islands that have dry lowlands where grasses are few but lots of cacti are present, tortoises with "saddleback" shells and long necks are populous.
What would happen if a few tortoise with a short neck and domed shell were to be brought over to an island with dry lowlands and few grasses on the ground?
A. The would stretch their necks and become long necked tortoises.
B.There would be increased competition for the few grasses that exist on the island.
C.The original population of long necks and the new population of short necks would work together
D.The long necked tortoises would prey on the short necked tortoises.
