Answer(nasal cavity, trachea, bronchi and bronchioles
Explanation:
The organ that is important in processing substances after being absorbed during digestion is the liver.
Answer:
Air-sea exchange is a physio-chemical process and is important for the cycling of gases such as carbon dioxide, methane, nitrous oxide, dimethylsulfide and ammonia
Answer:
us humans need a balanced ecosystem because its what keeps us alive. when having a balanced ecosystem we have cleaned water, purified air, maintained soil, regulates our climate, recycles nutrients, and provides us with food.
Answer:
A cheek cell
Explanation:
Human cheek cells are roughly circular or irregular in shape
