Complete the chart below looking at levels of nitrogenous bases in different species

Complete the chart below looking at levels of nitrogenous bases in different species.

State the uses of heterotropic bacteria and archaebacteria which are economical important?

What is the imperfect measurement in species richness?

In a series of infection experiments, a researcher discovers that the ID50 value for the infectious bacterium Parasiticum mucoides is 2,000, and that the ID50 for another infectious bacterium, Donoteatum thisbacterium, is 150.  Given these data, a person exposed to 1,000 bacteria of each type would be more likely to be infected by which bacterium? There is no way to know given the information provided Both infections are equally likely Donoteatum thisbacterium Parasiticum mucoides

Background info: The cyanobacterium Arthrospira platensis, colloquially known as Spirulina is/was a popular health food/supplement because it is extremely rich in amino acids and vitamins. However, these cyanobacteria also happen to be extremely good at absorbing lead, which means that these supplements are often contaminated with toxic amounts of heavy metals. One suggested application for these cyanobacteria is in bioremediation systems for industrial/mining wastewater contaminated with lead Question: The way that this application would work is that you’d have a sealed concrete pond full of the cyanobacteria that wastewater would flow into and then as the wastewater flows out the other end of the pond, the cyanobacteria are removed. How would this work to remove lead from the water?