A virus is considered as a living organism and an obligate parasite when inside a host cell. But virus is not classified along with bacteria or fungi. What are the characters of virus that are similar to non-living object?

Assertion : Virus is an obligate parasite. Reason : Virus is host specific.

A virus can be con be considered living being as it (a) Reproduces inside the host (b) Respires (c) Can cause disease (d) Responds to touch stimule.

It is said that elemental composition of living organisms and that of inanimate objects (like earth's crust ) are similar in the sense that all the major elements are present in both. Then what would be the difference between these two groups ? Choose a correct answer from the following.

It is said that elemental composition of living organisms and that of inanimate objects (like earth's crust ) are similar in the sense that all the major elements are present in both. Then what would be the difference between these two groups ? Choose a correct answer from the following.

The smallest living cell is : (a) Virus (b) Viroid (c) Mycoplasma (d) Cyanobacteria

[A] : The obligate parasites can live only on dead hosts . [R] : There are some organisms which grow and live together but each one is always harmed by the other . This phenomenon is known as antagonism .

What is the similarity and dissimilarity between 'whole moong daal' and 'broken moong daal' in terms of respiration and growth? Based on these parameters classify them into living or non-living?

When you look around, you see both living and non-living things. You must have wondered and asked yourself – ‘what is it that makes an organism living, or what is it that an inanimate thing does not have which a living thing has’ ? The answer to this is the presence of -

Consider the following three statements and select the correct option stating which one is true (T) and which one is false (F). (i) Oparin of Russia and Haldane of England proposed that the first form of life could have come from pre-existing nonliving organic molecules (e.g, RNA, protein etc.) and that formation of life was preceded by chemical evolution. (ii) Based on observations made during a sea voyage around the world. Charles Darwin concluded that existing living forms share similarities to varying degrees only among themselves. (iii) Evolution by natural selection must have started when cellular forms of life with different metabolic capability originated on Earth.