The noted microbial ecologist Martin W. Beijerinck has stated:“Everything is everywhere, the environment selects.” Use thisconcept to explain what ultimately determines whether amicroorganism can live in a certain habitat.

If an organism's role in the environment is to decompose material, this role could also be described as its

Deep Biosphere Microbes Complete each sentence about the benthic microorganisms. 1. Sediment samples from water depths up to 8,200 m reveal the presence of a vast (Click to select) ✓ 2. The piezosphere describes the (Click to select) ✓ at depths with pressures exceeding 100 atm. 3. Here microbes are 10 to 10,000 greater per unit volume than in productive surface waters. Reasons for this difference are complicated but include high energy availability and limited (Click to select) Estimates indicate that the benthic microorganisms comprise up to one-third of Earth's total living (Click to select) ✓