In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

[Q]: Question: Looking directly at what celestial object can cause blindness? Answer: sun
[A]: Looking directly at the sun can cause blindness.


[Q]: Question: What is the lowest level of organism that can perform all activities required for life? Answer: cell
[A]: A(n) cell is the lowest level of organism that can perform all activities required for life.


[Q]: Question: What encloses the border of animal cells? Answer: plasma membrane
[A]:
A plasma membrane encloses the border of animal cells.