b is the right answer I think
if you or anyone you know is good at math then please go to my profile and check out my question that I need answered
The condensation of water vapor formed the early oceans. It is an important part of the water cycle. It is easy to eliminate the other answers in this question. It can't be meteorites, living organisms, or nitrogen.
The animal it gave birth to
The digestive system is greatly affected by the irritation in the small intestine that occurs because of gallbladder disease.
Answer:
It means that it is trying to increase it's infectivity rate and its survivability rate in different environments.
