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: The mass of atoms is based on the number of protons and neutrons in what? Answer: nucleus
[A]: The mass of atoms is based on the number of protons and neutrons in nucleus.

[Q]: Question: One of the main features all vetebrates have in common is what? Answer: backbone
[A]: One of the main features all vetebrates have in common is a backbone.

[Q]: Question: What do you call cellular respiration that does not need oxygen to proceed? Answer: anaerobic respiration
[A]:
You call cellular respiration that does not need oxygen to proceed anaerobic respiration.