OBJECTIVE FORESTRY

FORESTRY

ECOLOGY AND ENVIRONMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Reasons that viruses are considered to be nonliving is because
A
They are not cellular
B
They cannot reproduce on their own
C
They cannot make proteins
D
all of the above
Explanation: 

Detailed explanation-1: -Viruses also lack the properties of living things: They have no energy metabolism, they do not grow, they produce no waste products, and they do not respond to stimuli. They also don’t reproduce independently but must replicate by invading living cells.

Detailed explanation-2: -Viruses are considered as something between living and non-living because they do not grow or reproduce by themselves. This makes them non-living.

Detailed explanation-3: -This is due to the fact that viruses possess the characteristic of both the living and the non-living. For instance, viruses can reproduce inside a host just like any other living organism, but this ability to reproduce is lost when the virus is outside the host cell.

Detailed explanation-4: -Why are viruses considered to be on the borderline of the living and non-living? Viruses do not grow or reproduce by themselves, which makes them non-living. However, when a virus enters the living cell of an organism, it makes use of the resources in the host cell and starts reproducing.

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