Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
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Question: Question: What organelle contains the genetic material of the cell? Answer: nucleus

Answer: The nucleus contains the genetic material of the cell.

Question: Question: What types of glands do only female mammals have? Answer: mammary

Answer: Two traits are used to define the mammal class. They are fur or hair and mammary glands in females.

Question: Question: What are considered to be the most basic concepts in the field of physical science? Answer: matter and energy

Answer:
Matter and energy are the most basic concepts in physical science. Watch this video about matter and energy, and then answer the questions below.