Question

Scientists have discovered the bodies of humans and other living things buried in bogs for hundreds of years, but not yet decomposed. Suggest a possible biological explanation for why such bodies are so well-preserved.

a) The acidic and anaerobic conditions in bogs slow down decomposition.
b) Bogs contain high levels of natural preservatives.
c) Microorganisms in bogs have unique properties that preserve bodies.
d) Bogs offer low temperatures that inhibit decay.

Answer 1

Bodies can be well-preserved in bogs due to the environment's low oxygen content and high acidity, which create conditions that significantly slow down decomposition and reduce oxidation.The correct answer is option B.

Step-by-step explanation:

Scientists have discovered that bodies buried in bogs for hundreds of years can be extremely well-preserved due to the unique environmental conditions. Specifically, bogs typically have low oxygen content and an abundance of organic acids, both of which contribute to a low pH in the water.

This acidic and anaerobic environment hinders the activities of bacteria and other decomposers that would normally break down organic tissue, thus slowing down decomposition. The stagnant water in a bog does not allow for the replenishment of oxygen, and as such, the natural process of oxidation, which is a typical part of decomposition, is greatly reduced. Moreover, other factors such as cool temperatures can further inhibit decay, although the primary factors are the acidic, anaerobic conditions.