instruction:
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.
question:
Sentence: Cardiac muscle kind of muscle cells undergo twitch-type contractions with long refractory periods followed by brief relaxation periods, allowing the heart to fill with blood for the next cycle. Question: What kind of muscle cells undergo twitch-type contractions with long refractory periods followed by brief relaxation periods, allowing the heart to fill with blood for the next cycle?
answer:
cardiac muscle

question:
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?
answer:
their external skeleton

question:
Sentence: The double helix dna shape forms when the two nucleotide chains wrap around the same axis. Question: What distinctive dna shape forms when the two nucleotide chains wrap around the same axis?
answer:
double helix