upon it

"We can make a protein that's better, faster, stronger. We can design it to be more efficient at binding to a target to improve a therapy or improve its function. If we can measure it, we can improve upon it."

Asheville was lucky enough to have upgraded its reservoir last year, something that prevented even worse flooding and allowed the region’s largest city and the communities that rely upon it for water to recover sooner than they otherwise might have.

He was building on the position he had laid out at the Labour party conference, in which he said: “It is the policy of this government to reduce both net migration and our economic dependency upon it.”

Yeah, there are a couple of jokes here and there that touch upon it.

Earth isn’t an isolated terrarium, and life upon it has been as influenced by impacts and near misses as by continental drift.