Premise:
"They then essentially starved the cells so that they shut down normal metabolic function, entering a quiescent state, in which dedifferentiation apparently occurs."
Hypothesis: The cells were starved to make them shut down metabolic functions.

yes

Premise:
"we have a yeah we have a dog and we're pretty i mean we're not fanatically neat but um we keep things up you know it's not like where there's three feet of weeds or anything in the yard by the time you need to um get around to fertilizing and cutting in the spring"
Hypothesis: We keep our house clean and our yard tidy.

it is not possible to tell

Premise:
"The newest curators-in-your-pocket are lightweight CD-ROM based systems on which visitors can punch in the numbers on wall labels, accessing commentary on whatever interests them."
Hypothesis: The visitors have to pay a fee in order to use the system.
it is not possible to tell