What evidence is there that modern archaebacteria may be most like the hypothesized earliest cells on Earth?
Both archaebacteria and early cells share morphological similarities,
including a membrane-bound nucleus.
Photosynthesis allows both archaebacteria and the earliest cells to harness
energy from the Sun.
Archaebacteria thrive in extreme environments of intense heat or pressure,
and microfossils suggest early life forms lived in volcanic environments.
Archeabacteria can only survive in warm, shallow waters similar to the
primordial seas in which cells evolved on early Earth.

Astudent from one of the research labs is having trouble preparing a slide for examination and photographing. the bacterial slide that he has brought to you was prepared using a commercially purchased stain. he has asked for your in determining what he is doing wrong so that he can change the lab protocols and continue on with his project. after examining the slide under oil immersion, you determine that no bacteria are present even though the student is able to show you the culture he used to make that slide that has visible growth in the liquid medium. which of the following statements does not explain the fact that there are no bacteria present on the student’s slide? by not allowing a glass slide to completely air dry before heat fixation, the flame will cause the surrounding water to boil and this will damage the bacterial cell. overheating during the fixation step boiled the water within the bacterial cells and resulted in the cells bursting. insufficient heating of the slide did not drive out the thin layer of water and this resulted in minimal bonding between the bacteria and the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide.