What evolutionary feature will you expect to see in the tortoises on the island?

The most expectant evolutionary feature would be longer necks. This will enable the tortoises to reach the higher grass. This would occur through natural selection that would favor the extreme traits (alleles of long neck) of long necks in the population.

Explanation:hope it helps you

The evolutionary feature you will expect you see in the tortoises on the island is longer necks.

Explanation:

Longer necks will be able to occur through natural selection. Tortoises would be able to reach for higher grass when grass isn't available from lower. This is a favorable trait.  

the answer is trees if i'm not mistaken