Which star, known as the North Star, is often used in navigation due to its proximity to the celestial north pole?

Which law of thermodynamics states that energy cannot be created or destroyed, only converted from one form to another?

Which of the following is a function of the integumentary system?

Which space mission discovered the first evidence of liquid water on Mars, suggesting the possibility of past life?

What is the purpose of the circulatory system in the human body?

What is the function of the Eustachian tube in the human ear?

In the human nervous system, what is the role of neurotransmitters?

What is the role of DNA in the cell?

What is the primary component of natural gas?

What is the term for the point in a planet's orbit where it is farthest from the Sun?