By:
On:
In: QnA

Barter is an alternative method of trading where goods and services are exchanged directly for one another without using money as an intermediary. For instance, a farmer may exchange a bushel of wheat for a pair of shoes from a shoemaker. What is life like in a barter economy? BasicsRead More →

By:
On:
In: QnA

chemoreception, process by which organisms respond to chemical stimuli in their environments that depends primarily on the senses of taste and smell. Chemoreception relies on chemicals that act as signals to regulate cell function, without the chemical necessarily being taken into the cell for metabolic purposes. What Animals use chemoreceptors?Read More →