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: What is the predicted year that as many as half of all remaining species could go extinct? Answer: 2050
2050 is the predicted year that as many as half of all remaining species could go extinct.

Question: What cellular structure is used during endocytosis to allow molecules to enter the cell? Answer: vesicles

Vesicles are used during endocytosis to allow molecules to enter the cell.