The tubular structure that conveys air to the lungs in vertebrates, often reinforced with cartilage rings.

A type of water-conducting cell found in the xylem of vascular plants, characterized by its elongated shape and thickened cell walls.

A group of vascular plants that possess specialized tissues for conducting water and nutrients, including ferns, gymnosperms, and angiosperms.

A small, fleshy prominence located in front of the ear canal in humans and some animals.

The segment at the end of a nucleotide sequence or protein coding sequence that may play a role in termination or processing of genetic material.

A distinguishing characteristic or feature of an organism, typically determined by genetics, such as eye color or plant height.

A substance that induces calmness or reduces anxiety, often used in medical or veterinary contexts to sedate or relax patients.

A prefix indicating a molecular configuration where substituents or atoms are located on opposite sides of a double bond or ring structure.

A type of molecular arrangement in which two substituent groups are located on opposite sides of a double bond or ring structure.

The process of transferring genetic material from one bacterium to another via a virus (bacteriophage).