Cells are the smallest structures of an organism. (nothing simpler than a cell is considered to be alive)
As far as I know, the prion is the smallest thing studied today. Mycoplasma is the smallest living thing known to man.
cells
molecules
Technology has made it possible for biologists to study living things right to their smallest elements. The microscope is a good example of a tool that allows biologists to study the most minute elements of all creatures.
When you classify an organism it is important because you need to know the rules
living organisms.
I believe it has not only made it easier for biologists to study living things, but has also helped them better understand the living things they are studying.
Biologists and Ecologists
Technology has made it possible for biologists to study living things right to their smallest elements. The microscope is a good example of a tool that allows biologists to study the most minute elements of all creatures.
When you classify an organism it is important because you need to know the rules
Biologists consider dormant virions to be non-living because they must obtain a host to function and replicate themselves. However, active viruses are considered to be living, by most scientists.
Amino acids.
They consider where it lives it's mating patterns and it's fur or coverings....those are on,y some things the consider
a cell
Biologists who classify living things are taxonomists, and the science is called taxonomy.
living organisms.
Biology is the study of life.. so Biologists
People who study organisms are called biologists.
Biologists study living things like plants and animals.
Many, if not most biologists do not consider viruses living. So, they are not on any phylogenetic tree that I know of. They may have a phylogeny that I am unaware of, though.