Answer:
Diaphragm
Explanation:
the exchange of air between the environment and the human body is a result of the rhythmic contractions of the rib cage muscles and the DIAPHRAGM. cilia Filtering dust particles out of the human respiratory system is the function of the little tiny hairs
Answer:
C. by causing mutations in genes
Explanation:
Smoke can induce mutations in genes causing tumors such as lung cancer
Answer:
Four Key Areas for Improvement. There are generally four main areas of communication skills that most of us would do well to improve. These are listening, non-verbal communication, emotional awareness and management, and questioning.
Explanation: