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viruses
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∙ 14y ago
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These pathogens cannot reproduce on their own and they must invade other cells to multiply?
Viruses
What is a biological agent that cannot reproduce on its own?
Virus
Which microorganisns cannot multiply on their own?
Viruses cannot reproduce on their own. They must invade and infect other cells in order to be able to reproduce.
Are smaller than cells and cannot reproduce on their own?
plants or animals
What happens when the body cannot differentiate between pathogens and body cells?
The immune system will target the body's own cells
Can you get an infection from sperm?
No. Sperm are not pathogens. Sperm are not viruses or bacteria. Sperm cannot reproduce themselves or hijack living cells in order to transcript its DNA or cause proteins to be produced.
Can a cat and dog reproduce?
Together- no. But yes cats can reproduce with other cats, and dogs with other dogs. But if you were asking if a dog and cat could reproduce the answer is no, they cannot.
Can steer reproduce?
Steers are castrated and cannot reproduce.
How natural selection favor evolution of drug-resistant pathogens?
Those pathogens that survive the drug attack and then reproduce progeny having this same resistance is a classic selection scenario.
Why do bacteria grow on gelatin in a peri dish and viruses cannot grow in this manner?
Because viruses are considered nonliving and they need a host to reproduce, therfore they cannot live on their own. Now bacteria can reproduce asexually, so they can get bigger and do not need a host..
Why are viruses difficult to place in the category of living things?
Viruses are technically not living because they cannot reproduce without a host cell, they cannot move on their own, and they have no organeles.
Can fossils reproduce?
No. They are dead. Dead things cannot reproduce.
