A researcher in a lab finds a microscopic organism that is a producer. Populations of this organism are found in extreme environments (e. g., hot springs). The researcher will correctly identify this organism as belonging to the domain .

Archaea

Explanation:

Archaea is domain of living organism consisting of unicellular, prokaryotic organisms that are able to exist in extremely harsh environment such as hydro-thermal vents, hotsprings and acidic environment.

Some archaea are known to posses the capacity to carry out a form of photosynthesis using rhodopsin-like ion pumps to move ions against the gradient and produce ATP via chemiosmosis. However, no known archea has the ability to carry out classical photosynthesis like that of green plants.

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

the dark variety, as they are not visible on the dark tree barks

explanation: