Final answer:
Language is a communication system that allows humans to express and organize their thoughts. It serves as a building block for human culture and is influenced by biology and culture. It is shaped by our anatomy, cognition, and interaction with the environment.
Step-by-step explanation:
Language is a communication system that consists of a lexicon (vocabulary) and grammar. It is unique to humans and allows us to express and organize our thoughts, convey meaning, and communicate with others. Language serves as a building block for human culture, enabling the development of complex societies and the transmission of knowledge and ideas. It is influenced by both biology and culture, and is shaped by our anatomy, cognition, and interaction with the environment.