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What are 2 non-living pathogens?
viruses and viroids.
What are two reasons that viruses are considered non living?
Some argue that viruses are not living organisms because they can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own. And also viruses do not metabolize on their own.
Why don't most scientist consider viruses to be alive?
Most scientists consider viruses as the link between living an non living organisms. Viruses are considered non-living by some scientists because - 1) They donot perform any metabolic activities. 2) Outside the host cell , viruses are present only in crystalised form. (Even after it is un-crystalised , it does not lose it's capacity for infection) 3) It does not require any sort of "food".
What are the 2 types of growth in living and non-living things?
hair and nails
What are the 2 types of ecosystems?
Biotic and Abiotic
What are 2 non-living pathogens?
viruses and viroids.
What are two reasons that viruses are considered non living?
Some argue that viruses are not living organisms because they can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own. And also viruses do not metabolize on their own.
What are the 3 main reasons viruses don't qualify as living?
1.no nucleus 2.they are particles 3.can't live on their own
What are two things that make viruses hard to fight?
The two things are: 1. Viruses behave as living beings only inside another living cell and act as a non living thing when isolated or outside the living cell. 2. The genetic material of a virus is RNA not DNA which is gives complexity in its study.
Why don't most scientist consider viruses to be alive?
Most scientists consider viruses as the link between living an non living organisms. Viruses are considered non-living by some scientists because - 1) They donot perform any metabolic activities. 2) Outside the host cell , viruses are present only in crystalised form. (Even after it is un-crystalised , it does not lose it's capacity for infection) 3) It does not require any sort of "food".
What are 2 non-living things in a desert?
the non-living things in a desert is sand and big rocks!
What are the 2 types of growth in living and non-living things?
hair and nails
What are the 2 types of ecosystems?
Biotic and Abiotic
What organisms are infected by a virus?
virus is a small infectious agent that can replicate only inside the living cells of an organism. Viruses can infect all types of organisms, from animals and plants to bacteria and archaea.[1]Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants, and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898,[2] about 5,000 viruses have been described in detail,[3] although there are millions of different types.[4] Viruses are found in almost every ecosystem on Earth and are the most abundant type of biological entity.[5][6] The study of viruses is known as virology, a sub-speciality of microbiology
List two ways viruses differ from living things?
1) Viruses do not grow, they are a certain size from the moment they are made. Just a protein coat and a set of genetic instructions. 2) Viruses do not respire they don't turn over energy at all, they hijack living cells which can turn over energy and use them to do their reproduction. 3) Viruses do not excreat waste products- they don't make any so they don't need to. Most living things make some toxic substances which must be got rid off eg carbon dioxide and urea. 4) Viruses cannot reproduce, make more of their own kind without hijacking the apparatus of a living cell.
Is water a non living or living?
Water is not a living thing, but organisms require it to survive. Water is a Compound of 2 hydrogren elements and 1 oxygen elements.
What are the features of Viruses?
1. Viruses are a cellular, non-cytoplasmic infectious agents. 2. They are smaller than bacteria, and this can pass through bacteriological filter. 3. Viruses are transmissible from disease to healthy organisms. 4.All viruses are obligate parasites and can multiply only within the living host cells. 5.Viruses contain only a single type of nucleic acid either DNA or RNA. 6. Viruses are host specific that they infect only a single species and definite cells of the host organisms. 7. Viruses are effective in very small doses. They are highly resistant to germicides and extremes of physical conditions.
