Are viruses alive? the scientific debate continues. viruses exhibit some characteristics of life, but others are missing. the most obvious reason why scientists still refer to viruses as non-living is that they

a. do not change over time.
b) do not contain any genetic material.
c) are much smaller than anything alive.
d) are not composed of one or more cells.

They are not composed of cells. And one of eight characteristics of life say that all living things are composed of cells. Therefore, a virus would have to have in order to be considered a living thing.

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.

answer; /// i believe the name your looking for is called (plaque)or check good luck