Which statements which is true regarding isolated colonies.

Where are microorganisms likely found?

This is how the MacConkey agar plate looks after 24 hours of incubation. Are these bacteria positive or negative for lactose fermentation?  

You have a nutrient broth, an agar slant, and an agar plate with bacterial growth in or on each. If you wanted to evaluate the macroscopic appearance of the bacterial colonies growing in or on the medium, which of the cultures would be the best choice?

Is this a Coagulase (+) or Coagulase (-) result? 

What would be the result if a student forgets to add Safranin to their Gram stain to an organism that has a Gram (+) cell wall?

What is the smallest unit of a protein?

Indicate the statements that is NOT true regarding microbial colonies.

This is how the MacConkey agar plate looks after 24 hours of incubation. Are these bacteria positive or negative for lactose fermentation?    

The owner of a website wanted to know if more people would subscribe to his website if using a black vs. a blue background in the messages that ask consumers to subscribe. He conducted an AB test with the exact pictures below and found that the picture on the right drives a higher click-through rate compared to the picture on the left. He asked you to look at his AB test and conclude about the initial question he had. What would you say?