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.

Question: Plant cells have structures that animal cells? Answer: lack
Plant cells have structures that animal cells lack.

Question: The reverse process of moving material into a cell is the process of what? Answer: exocytosis
The reverse process of moving material into a cell is the process of exocytosis.

Question: What form of matter has neither a definite shape nor a definite volume? Answer: gas

The gas form of matter has neither a definite shape nor a definite volume.