Why can this organism survive without mitochondria

Answer

Without mitochondria higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration in the absence of oxygen. A process much less efficient than aerobic respiration.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.