Explanation:
1. they are convenient to use 2. it helps the international tade 3. it eases the exchange of material
Answer:
Alexander Fleming
Explanation:
Which scientist developed the idea that microorganisms can cause diseases?
Paul Ehrlich
Cystic Fibrosis is a genetic mutation
Answer:
Spinal cord is a colon of nerve tissue that runs from the base of the skull to the center of the back.
Its function is to act as a highway communication between the body and the brain.
Explanation: