Mechanical digestion begins in the mouth through chewing and grinding of food.
Which type of galaxy has a flattened disk structure with spiral arms and a central bulge?
What is the term for the process by which a river deposits sediment as it loses energy, often forming a fan-shaped landform?
What is the closest star to Earth?
Which gas is produced during the process of photosynthesis in plants?
Which organelle is responsible for cellular respiration and energy production in eukaryotic cells?
Which space telescope has provided stunning images and valuable data about the universe since its launch in 1990?
What is the term for the process by which a river wears away the land and carries sediment downstream?
Which of the following is a type of igneous rock that forms from the cooling and solidification of lava on the Earth's surface?
Which space telescope is set to succeed the Hubble Space Telescope and is designed to observe the universe in infrared wavelengths?
What is the name of the closest galaxy to the Milky Way, which is also a part of the Local Group of galaxies?