Question

The bacterium that commonly lives in animal and human intestines is:
A. Bacillus anthracis
B. Vibrio cholera
C. Escherichia coli
D. Corynebacterium

Answer 1

Hint: Bacteria are unicellular organisms that belong to the prokaryotic group in which the organisms lack a true nucleus and some organelles. Today, bacteria are treated as one of the oldest types of earth life. While most bacteria make us sick, they have a long-term, mutual relationship with people and are particularly essential for our survival.

Complete Step-by-step answer:

Escherichia coli (E. coli) is a bacterium that generally lives in the lower intestine of warm-blooded organisms such as humans and animals. Most species of E. coli are harmless, and they are part of the normal vegetation of the gut. Though, some strains of  E. coli may cause cramps, irritation, and food poisoning.
Anthrax is a severe infectious illness caused by gram-positive, rod-shaped bacteria referred to as  Bacillus anthracis . It takes place naturally in soil and usually affects domestic and wild animals throughout the world. People can become sick with anthrax if they meet contaminated animals or infected animal products.
Cholera is a bacterial disease caused by the bacteria Vibrio cholerae. This kind of bacteria is generally present in infected foods. It is also located in areas where there is a lack of hygiene facilities. This disease was first detected in the US during the 1800s. Cholera disease was causing serious problems for people for hundreds of years.
Diphtheria is a severe infection caused by strains of bacteria known as Corynebacterium diphtheriae that make toxins (poison). This can cause breathing problems, cardiac failure, paralysis, and even death. CDC recommends vaccines for babies, teens, children, and adults in order to avoid diphtheria.
Therefore the correct answer is Option C.
Note: In general, an infected person loses significant amounts of water by vomiting or diarrhoea. Consequently, oral rehydration solutions, fruit juices, and water should be provided to complement the lost water and electrolytes. Additionally, since E. coli is a bacterium, antibiotics are commonly prescribed when doctors detect an infection.