Question

3b - endosymbiosis lc
what were two things that all cells at the beginning had?
o dna and a cell membrane
o nucleus and ribosomes
o cell wall and a nucleus
o cell wall and a cell membrane

Explanation:

All cells, both prokaryotic and eukaryotic, have DNA as their genetic material and a cell - membrane which acts as a barrier and controls the movement of substances in and out of the cell. Prokaryotic cells lack a nucleus, and not all cells have a cell wall (animal cells do not have cell walls).

Answer:

DNA and a Cell Membrane