Which of the following is an example of a negative chemotactic

response in bacteria?

W) Marine bacteria that use carbon dioxide as a nutrient are able to sense the concentration

and move toward more highly-concentrated areas

X) Bacteria being viewed under a microscope move away from the light

Y) In a petri dish, E. coli will move away from concentrated areas of acetate

Z) Photosynthetic bacteria will move towards the light in a gradient
Y) IN A PETRI DISH, E. COLI WILL MOVE AWAY FROM CONCENTRATED AREAS