It's because taking them regularly until the prescription is complete helps ensure that all of the illness-causing bacteria are killed or prevented from multiplying
They are able to travel in a vacuum at the same speed.
Hope it helps
3. Environment
The simplest definition of an ecosystem is that it is a community or group of living organisms that live in and interact with each other in a specific environment.
(C) they used trans-Saharan trade route to acquire expensive ivory.
