Biological evolution is the process through which the characteristics of organisms change over successive generations, by means of genetic variation and natural selection. hope that helps
This is the exact answer:
Bacteria are helpful because they produce oxygen, which our bodies need to breathe, and they help us to digest the food we eat. Bacteria are also helpful because they are used in medicine to help us overcome disease. Bacteria are harmful because they can cause tooth decay and illnesses that can be either common or quite serious.
Answer:
B. Mitigating problems associated with rising sea
Explanation:
axesual thats how they reproduce
The transfers of most cells require water and if the body dosent have enough it will shut down
