Alveoli are the microscopic structure present deep inside the lungs. Alveoli acts as a basic unit of ventilation. Alveoli are present in the lungs of mammals only.
Alveoli are hollow sac like structures when viewed under the microscope. Alveoli are the main site of the gas exchanges in the mammals. The alveoli are covered by the epithelial layers.
Electromagnet is an electrical component that when powered emits a magnetic field based on the amount of current provided. this is the same principal that runs induction motors
There are no statements given however a centriole is made up of microtubules triplets in a 9+0 pattern (I am unsure of what level of depth is required)
