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Parasites need a host in order to reproduce. These can for the most part be divided into two major groups:
1) Parasites that are phisiologically dependant on their host to survive but once leeching off of nutrients they can reproduce without having to hijack any of the host's systems. These cannot survive for long without being in their host, nor can they reproduce;
2) Obligatory parasites, which are things such as viruses. There isn't a consensus as to whether viruses are alive or not, but some broaden the definition of life to include them. Viruses are called obligatory parasites because they cannot reproduce without hijacking the cellular mechanism for transcribing their own viral DNA or translating their viral RNA to make more viral particals.
Wiki User
β 10y ago
Wiki User
β 14y agoViruses are incapable of producing outside of host cells, but whether they can be considered organisms is a topic of debate among biologists. Currently, the most widely accepted view is that viruses do not satisfy all of the criteria required to be considered "alive" and thus are not organisms.
Wiki User
β 13y agoA mule can not reproduce I think.
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Is a cat an organism?
Yes, a cat is an organism. Everything living such as animals, people and plants are organisms because they all use energy, have cells, reproduce, grow, and have DNA.
Why do biologist not classify a car as a living organism?
because it is not living, not a livin organism. I would class it as a thing, a materlier. But what does it mean to be alive? According to biologists living organisms are characterized by seven "signs of life": 1) living things have highly organized, complex structures; 2) living things maintain a chemical composition that is quite different from their surroundings; 3) living things have the capacity to take in, transform, and use energy from the environment; 4) living things can respond to stimuli; 5) living things have the capacity to reproduce themselves; 6) living things grow and develop; and 7) living things are well-suited to their environment.
Living things reproduce?
All living things move, breath, eat, sleep and reproduce. If not, it is not a living thing.
What is is similar among all living organisms on Earth?
All living organisms on Earth use DNA as their genetic material.All living organisms use cellular metabolism to obtain and use energy.All living organisms have some form of response to external stimuli.All living organisms undergo reproduction.All living organisms are made up of one or more cells, the basic unit of life. My recommendation:πππππ://πππ.πππππππππ24.πππ/πππππ/394659/πΆππππ01/
Only plants and animals reproduce?
"All living things reproduce" are one of the characteristics that define what is living and what is non-living. Plants and animals reproduce along with bacteria, fungi and protists.
Are Viruses able to reproduce without using other organisms?
viruses are dormant when they are not inside a living cell. that means they don't have living characteristics when outside a living cell. they only reproduce when they are inside a living cell.
Why scientist believe that virus are not living organisms?
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.
Are all organisms living things?
Yes **G1N4** I thought some living things are not organisms, because they are not free living.
Why is virus not a kingdom?
Virus' are not living - they cannot exist outside a living organism, and therefore cannot be classified in the same way as other organisms
Can non-living things reproduce?
Viruses can reproduce only inside a cell of living organisms. Viruses are sometimes considered non-living structures because they lack cells.
Why are viruses denied a kingdom?
Virus' are not living - they cannot exist outside a living organism, and therefore cannot be classified in the same way as other organisms
Organism have the potential to reproduce?
all living organisms
What are classifications for substances in living organisms?
It grows and it can reproduce.
What are the 4 traits of living organisms?
Living organisms eat, reproduce, change over time, and create waste.
Which is the difference between bacteria and viruses that shows the bacteria are living organisms and viruses are not?
Only Bacteria can reproduce outside of a host.. Bacteria are made of cells
Why do living organisms need living space?
organisms need a living space so that they can reproduce and protect themselves
What allows organisms to grow develop reproduce and adapt?
Adaptation
