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.

[EX Q]: Question: What goes through different larval stages? Answer: crustaceans
[EX A]: Crustaceans go through different larval stages.

[EX Q]: Question: What begins approximately six weeks after fertilization in an embryo? Answer: ossification
[EX A]: Ossification begins approximately six weeks after fertilization in an embryo.

[EX Q]: Question: Which common element is the most found in living organisms? Answer: carbon
[EX A]:
Carbon is the most found element in living organisms.