instruction:
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:
Question: What sort of digestion do animals engage in? Answer: internal
answer:
Animals engage in internal digestion.

question:
Question: What is defined as the velocity of the object at a given moment? Answer: instantaneous velocity
answer:
Instantaneous velocity is defined as the velocity of the object at a given moment.

question:
Question: What branch of science is based on the modern atomic theory, which states that all matter is composed of atoms? Answer: chemistry
answer:
Chemistry is based on the modern atomic theory, which states that all matter is composed of atoms.