Perihelion is the point in a planet's orbit where it is closest to the Sun.
What is the primary function of the pancreas in the digestive system?
What is the name of the theory that explains the origin of the universe, suggesting an initial singularity followed by rapid expansion?
In plant cells, what organelle is responsible for photosynthesis?
What is the chemical symbol for bromine?
What is the fluid-filled sac found in animal cells that stores water and waste products?
Which moon of Saturn is known for its geysers of water vapor erupting from its icy surface?
In the human reproductive system, what is the function of the testes in males?
What is the largest organ of the human body?
Which star, known as the North Star, is often used in navigation due to its proximity to the celestial north pole?
What is the function of the respiratory system?