A molecule made up of three oxygen atoms, important in the Earth’s atmosphere for filtering ultraviolet light.

A medical term for bad breath or halitosis, often caused by oral or digestive conditions.

The sixteenth letter of the alphabet, often used to symbolize pressure in physics and various other terms in science.

A large mammal with thick skin, such as elephants, rhinoceroses, and hippopotamuses.

A stage in meiosis during prophase I, where homologous chromosomes are paired and crossing over occurs.

The roof of the mouth, separating the oral cavity from the nasal cavity.

A scientist who studies human evolution through the analysis of fossilized remains and artifacts.

A geological epoch from approximately 66 to 56 million years ago, following the mass extinction event at the end of…

The act of examining the body through touch, typically by a medical professional to assess the condition of organs or…

A genus of great apes, including gorillas, chimpanzees, and bonobos.