But butterflies exposed to an earlier light cycle , from 1am to 1pm , orientated themselves towards the south-east .
But butterflies housed under an earlier light cycle , 1 a.m. to 1 p.m. , flew toward the southeast .
(See options at the end). If the first sentence is true, is the second one also true?
pick from the following. 1. no 2. yes
2.