Question

bacteria come in many shapes. the most common shapes for bacteria are spheres, rods and spirals. rod - shaped bacteria are called bacilli or bacillus. cocci or coccus are spheres. and spirilla or spirillum are spirals. staphylococcus and streptococcus are two groups of bacteria that are sphere - shaped. you can see that from the \coccus\ in their names. some kinds of staphylococcus and streptococcus bacteria can make you sick. thats how people get staph infections and strep throat. coccus bacteria often link together to form pairs or chains. salmonella is a group of rod - shaped bacteria. they are one of the most common causes of food poisoning. salmonella can be described as which of these? choose one option:
○ cocci
○ bacilli
○ spirilla

Explanation:

The text states that rod - shaped bacteria are called bacilli or bacillus. And Salmonella is described as a group of rod - shaped bacteria. So we can determine the correct option by matching the shape - name relationship.

Answer:

B. bacilli