Viruses are not considered living organisms. Why? A. They can reproduce on their own. B. They have a cell nucleus. C. They need a host cell to reproduce. D. They can move by themselves. 相关知识点: 试题来源: 解析 C。病毒需要宿主细胞才能繁殖,所以不被认为是生物。
Why are complex life cycles valuable for helminths? Why are viruses considered to be non-living? Why are some organisms difficult to place in a food chain? Why does divergent evolution make taxonomy difficult? Why are microorganisms hard to see in wet preparations?
Why are viruses considered to be non-living? Why did plants become multicellular? How do plants detect volatile organic compounds? Why is UV light considered a mutagen? How has organic chemistry changed the world? Why are acids considered corrosive?
Viruses possess characteristic features of both living and non-living. At first glance, viruses almost look like a piece of machinery. Explore more only at BYJU’S
Virion are also known as “viral particles,” and they are the means by which viral nucleic acids are able to move and ‘infect’ living organisms. Without the viral particle (taxi) to carry around the virus DNA (passenger), it would be harmless; in fact, viruses are often described as...
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The problem isn’t just a lack of toilets—it’s a lack of toilets that people want to use. The result: millions of deaths and disease-stunted lives.
If you're a parent, you might notice that your child gets sick over and over again. It might feel like your child gets sick every two weeks. That's because kids are exposed to a lot of viruses and bacteria—often for the very first time—which makes them vulnerable to catching everyth...
Why are viruses not classified in the kingdoms of life? Why are viruses not considered alive? Explain, in detail, why a virus is or is not considered to be a living organism. Are viruses living or non-living? Explain why. It has been said that viruses lead...
Why is the influenza virus considered one of the most dangerous viruses? Do you believe vaccines should be required for all children to attend school? Research how vaccines work and how they are preserved. Give one argument for and one argument against the proposition that vaccine-preventable dise...