My sage plants demonstrate the impact.
I grew all these from the same batch of seeds, and started them at the same time. Both planters went out on the deck at the same time. But after a couple weeks, I put one of the planters in the greenhouse. After about 4 weeks in the greenhouse, the plants really took very different shapes.
The green house sage grew taller and thinner. The leaves became narrower. The outdoor sage preferred to develop in a squatter fashion.
If only it had occurred to me to do this for my 6th grade science project.