reproduction
It is because viruses are not made up of cells
Neither, viruses are unique to themselves and don't belong to any classification of life. Viruses are not considered living things because they do not perform all the functions of life therefore they are considered organic particles.
Viruses do not belong to any kingdom. There is an ongoing debate to whether viruses are alive or not. With the facts given, it is up to you to decide if viruses are alive or not. All Living things: -are composed of cells with a complex, organized structure -actively maintain their complex structure and internal environment (homeostasis) -respond to stimuli in their environment -acquire and use materials and energy from their environment and convert them into new forms -reproduce, using the molecular blueprint of DNA -have the capacity to evolve Viruses: -are not made of cells and do not have cells -cannot accomplish the basic tasks of living cells -have no ribosomes to make protein -have no cytoplasm -cannot acquire energy or steal the host's energy -cannot grow or reproduce by themselves or with other viruses -do not respond to stimuli -cannot maintain a stable internal environment -can evolve
Because viruses are neither plant nor animals. Actually these objects do not have their own complete body. Their activities are best seen in the host living cell.
Viruses, but they are not organisms because they are not alive.
reproduction
It is because viruses are not made up of cells
viruses do not grow, and viruses do not respond to changes in their environment. Therefore, viruses are not living organisms. All living things reproduce, but Viruses need living cells to reproduce because Viruses cannot reproduce by themselves.
because they are not yet clearly classified
because of their difference in metabolism
No viruses should not be considered living organisms because they require a host to live &therefore are not an organism but an infestation.
According to the answer from my textbook, it is because "When outside a living host cell, the virus exists as a crystal and is not considered a living thing because it does not carry out any life processes."
Neither, viruses are unique to themselves and don't belong to any classification of life. Viruses are not considered living things because they do not perform all the functions of life therefore they are considered organic particles.
Antibiotics do not work on viruses because viruses are not cells which can take in and out or be infected by specific processes.
Viruses do not belong to any kingdom. There is an ongoing debate to whether viruses are alive or not. With the facts given, it is up to you to decide if viruses are alive or not. All Living things: -are composed of cells with a complex, organized structure -actively maintain their complex structure and internal environment (homeostasis) -respond to stimuli in their environment -acquire and use materials and energy from their environment and convert them into new forms -reproduce, using the molecular blueprint of DNA -have the capacity to evolve Viruses: -are not made of cells and do not have cells -cannot accomplish the basic tasks of living cells -have no ribosomes to make protein -have no cytoplasm -cannot acquire energy or steal the host's energy -cannot grow or reproduce by themselves or with other viruses -do not respond to stimuli -cannot maintain a stable internal environment -can evolve
Humans are classified as living organisms because they show the characteristics of a living organisms like:- 1.They do respiration. 2.They do loco motions. 3.They eat & etc.
Viruses are not typically considered to be organisms because they are incapable of "independent" or autonomous reproduction or metabolism. This controversy is problematic because some cellular organisms are also incapable of independent survival (but not of independent metabolism and procreation) and live as obligatory intracellular parasites. Although viruses have a few enzymes and molecules characteristic of living organisms, they have no metabolism of their own and cannot synthesize and organize the organic compounds that form them. Naturally, this rules out autonomous reproduction and they can only be passively replicated by the machinery of the host cell. In this sense they are similar to inanimate matter. While viruses sustain no independent metabolism, and thus are usually not accounted organisms, they do have their own genes and they do evolve by similar mechanisms by which organisms evolve.