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How things like a virus prion and viroid can reproduce but are not considered to be alive?
Wiki User
∙ 10y ago
The virus, prion and viroid don't meet the definition of alive which is:
- Movement: All living things move in some way.
- Respiration: Respiration is a chemical reaction that happens within cells to release energy from food.
- Sensitivity: The ability to detect changes in the environment.
- Growth: All living things grow.
- Reproduction: The ability to reproduce and pass genetic information onto their offspring.
- Excretion: Getting rid of waste.
- Nutrition: The intake and use of nutrients.
All living things do all of these things. Viruses make use of living cells.
Wiki User
∙ 10y ago
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If something can not yet reproduce but will be able to in the future can it be considered alive?
Yes.
Why arent virises classified into a kingdom?
Viruses are not classified into any of the kingdoms because they cannot live outside of a host cell (they depend on the host cell's DNA to reproduce and undergo metabolic reactions within it).
Does the fact that an embryo contains DNA prove that it is a living being?
No, it means that it has the potential to be alive. I think that for something to be considered alive, then it must be able to move, reproduce, sense, grow, reproduce, excrete and rely on nutrients for its survival. (note: that's just my opinion)
Are all organisms living things?
Yes **G1N4** I thought some living things are not organisms, because they are not free living.
Why are caterpillars considered living things?
because there alive stupid dumb people
Are organs alive?
No because organs coukd not reproduce in order to be considered alive u have to be able to reproduce
If something can not yet reproduce but will be able to in the future can it be considered alive?
Yes.
Are bacteria and mold alive?
yes, they are living things because they grow and reproduce.
Virusers are not considered alives because they lack what?
Viruses are not considered alive because they lack the ability to reproduce unless they have a host to reproduce for them. When viruses are not attache to a living cell they lose all living characteristics.
Can a tornado reproduce?
No. Tornadoes do not reproduce. They are not alive.
How do guppies reproduce?
They reproduce by mating.
Why arent virises classified into a kingdom?
Viruses are not classified into any of the kingdoms because they cannot live outside of a host cell (they depend on the host cell's DNA to reproduce and undergo metabolic reactions within it).
What is the definition of non-living things?
Things which are not alive, which do not have the characteristics of living things: the ability to grow, the need to be nourished, the ability to reproduce.
What kingdom do viruses and bacteria belong to?
Viruses are prokaryotes and not Eukaryotes. Therefore they are not alive. Since it is not considered to be alive they do not belong in the 5 kingdom classification; Monera, Fungi, Plantae, Animalia, Protista. Bacteria are living once celled organisms and belong to either bacteria or Archaea. *Viruses not considered alive because they need a host to be able to reproduce. They cannot reproduce on their own.
What is a reason that something might not be considered science?
1 obvious way is if it can move. others would be like: can it produce heat/cold, if it is alive/dead, if it can reproduce, if it can take in energy from the sun or other things, it you can see it, etc.
Does the fact that an embryo contains DNA prove that it is a living being?
No, it means that it has the potential to be alive. I think that for something to be considered alive, then it must be able to move, reproduce, sense, grow, reproduce, excrete and rely on nutrients for its survival. (note: that's just my opinion)
Are all organisms living things?
Yes **G1N4** I thought some living things are not organisms, because they are not free living.
