In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Sentence: Iridescent green beetles, known as jewel beetles, change color because of the light-reflecting properties of the cells that make up this? Question: Iridescent green beetles, known as jewel beetles, change color because of the light-reflecting properties of the cells that make up this?
their external skeleton

Sentence: Terrestrial biomes are classified by climatic factors and types of primary producers. Question: What are classified by climatic factors and types of primary producers?
terrestrial biomes

Sentence: The mass of atoms is based on the number of protons and neutrons in nucleus. Question: The mass of atoms is based on the number of protons and neutrons in what?

nucleus