instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Restoration ecologists type of ecologists work to identify and manipulate the processes that most limit recovery of ecosystems from disturbances.
answer:
What type of ecologists work to identify and manipulate the processes that most limit recovery of ecosystems from disturbances?


question:
The active transport of ions across the membrane causes an electrical gradient to build up across the plasma membrane.
answer:
The active transport of ions across the membrane causes an electrical gradient to build up across the what?


question:
After implantation, the blastocyst is called an embryo.
answer:

What is the blastocyst called after implantation?