Question

Why viruses do not show the characteristics of life before entering the human body​

Answer 1

Answer:

HI FRIEND

Viruses lack membranes. Hence, they do not show characteristics of life until they enter a living cell. On entering the living cell they use the cell machinery to multiply.Viruses are infectious organisms and are dependent on their host. They behave like non-living organisms before entering a host, once they are enetered they take control of the host's cells machinery to grow large in numbers.

Moreover, they behave like living-organisms because of the presence of some proteins and glycoproteins in them. They are like cells as they contain genetic information in the form of DNA or RNA. They have the ability to evolve themselves once they enter their host's body.

What are 5 characteristics of viruses?

These are: 1) attachment; 2) penetration; 3) uncoating; 4) replication; 5) assembly; 6)release. As shown in , the virus must first attach itself to the host cell. This is usually accomplished through special glycoprotiens on the exterior of the capsid, envelope or tail.

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Answer 2

Answer:

Viruses lack membranes. Hence, they do not show characteristics of life until they enter a living cell. On entering the living cell they use the cell machinery to multiply.

Explanation:

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