It is difficult because viruses lack the ability to replicate themselves and theey lacks energy metabolism and other pathways that living things have. Viruses are totally depending on their host. If they want to replicate, they have to infect the host.
because viruses do not have all the characteristic
cause its in the computer
because they can't carry out functions
classification means the put things into different groups according to their character .classification makes the study of livingthings much easier.
I think you would classify it as a prokaryote
lichens, corals, viruses, corals, viruses and carnivourous plants are difficult to classify :)
Hybrids are a mix of two different species. It is difficult to classify hybrids because they do not fit into either specific species.
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Birds are difficult to classify because they must be categorized by their genetic makeup. Sometimes there are over eight classifications for a specific bird.
because eugleana is hard to classify
without growth people,plants,animals and all livingthings will not grow in height ,weight .
it depends on the virus
nitrogen is essentially a building block for proteins and is need for all livingthings to grow well
they are not made up of cells