No. 13

1 They do not share genetic similarities.

2 They met and had children centuries ago.

3 They shared knowledge about building rafts.

4 They had little experience as sailors.

No. 14

1 A raft could be used to cross the Pacific Ocean.

2 It is unlikely Native Americans crossed the Pacific Ocean.

3 Polynesians’ rafts were superior to their canoes.

4 Some Pacific islands could not be reached by boat.