<span>Members of the archaea are complex single-cells organisms that are often thought to be bacteria; however, they are actually prokaryotic microbes that lack a cell nucleus and membrane. They often thrive in extreme conditions such as extreme heat.</span>
True. A protein becomes functional only when it reaches its tertiary shape (3D). It is not necessary for the protein to reach the quaternary stage, but that is just a more complex functioning protein. It really is just two tertiary merged together. Example is red blood cells.
The levels of an environment to be organized are populations,species,community,and the ecosystem
Populations evolve and individual organisms do not. Evolution occurs through natural selection and survival of the fittest as populations evolve traits that better suit their environment.
