umm... what substances
um sure u messed up with the question
The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.
Answer:
The growth of the species population out paces the species ability to obtain water.
Explanation:
Answer:
a production of odor
Explanation:
an odor is caused by one or more volatilized chemical compound that humans and other animals can perceive by the sense of smell.