The cholera bactery evolves which means it changes the way it works. So if you are vaccinated, the bactery will evolve itself in such a way that your body doesn't reject it.
Answer:D) I know my hand is in ice but I cannot feel any pain
Explanation:
I took the quiz
Some renewable energy sources are Wind, Solar, and water, these are all better to use then like coal or gas to power houses or cars, there safer to use because they dont produce any harmful chemicals like coal or gas do.
Answer:
can you expressed your feeling
Explanation:
Answer:
When populations are separated by a barrier forming a new species