Precisely.The cow patty looking things?
Edit:
@Marvin the Martian , if you are new to exobiology and want to try it no matter what, go for any bio signal you find, just to get used to it but, in the long run, I would suggest that you skip bacteria altogether. They can be hard to spot in several circumstances, being just spots on the ground, and their payout is among the lowest. There are some species of bacteria that can pay a decent amount, but they are fairly rare.
All other exobiology samples are generally more conspicuous and visible, from little tufts of grass, to massive tree like structures: way easier to spot as you fly above the planet's surface.
As a rule of thumb, if you see a planet with an Argon or Neon atmosphere and Bacteria on it, skip it and save yourself the bother, unless you want to do it to learn and perhaps take a few pics of the landscape!
Last edited: