Precambrian was when all life just started and lived in the ocean. They help us breathe oxygen making the species today live their life. I belive this the answer.
Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more. If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them. coccus, rod or bacillus, and spiral are the most common shapes of bacteria
B) lung , because an organism is a living thing. Humans , mold , and bacteria live . A lung is an organ in the organ system
Answer:
Emigration
Explanation:
If there is a large number of deaths, then the population would move onto another area to find a mate, more food, and to be together to protect themselves from danger.
Hope this is what you were looking for, lmk if I can do anything else.
