Adena boils tomato soup to kill all of the bacteria in it. She pours the hot soup into four groups of four small bowls that are just out of the dishwasher. The table shows what she does with each group of samples.

She is going to observe what grows on each sample. Which is the control sample in this experiment?

https://prnt.sc/p4icbb

Question

Adena boils tomato soup to kill all of the bacteria in it. She pours the hot soup into four groups of four small bowls that are just out of the dishwasher. The table shows what she does with each group of samples.

She is going to observe what grows on each sample. Which is the control sample in this experiment?

https://prnt.sc/p4icbb

iosangel · Answer

Group one is constant i think

iosangel · Answer

I think it isnt that

dude · Answer

I believe it is group 1 too

It is the only one that was not interacted with, the other ones were handled with by finger, tongue and allowing air to flow to the bowl is allowing free-floating bacteria to enter the soup again (if you think about it)

iosangel · Answer

Oh I thought it wasn't group one  because i thought it was a constant

dude · Answer

Ye the control group is the one that isn't modified, a constant

iosangel · Answer

ok lol