Complex sentence: Exophiala jeanselmei were also found to recover metabolic activity after exposure to a simulated Mars environment for 7 days, again depending on the temporary saturation of the atmosphere with water vapour like the lichens.
Split into simpler sentences: Exophiala jeanselmei were also found to recover metabolic activity during exposure to a simulated Mars environment for 7 days. Again depended on the temporary saturation of the atmosphere with water vapour like the lichens.