What statement is not true of viruses?
a) they have a capsid of protein and core of dna or rna.
b) an infected cell replicates viruses and is killed when it does so.
c) viruses readily mutate which is why we get colds and flu so frequently.
d) viruses are considered organisms with all the characteristics of life associated with prokaryotic and eukaryotic organisms.
e) mark e if all statements are true.

The correct answer will be option D.

Explanation:

The virus is the infective agents which are made up of assembled macromolecules like proteins, lipids, nucleic acids and carbohydrates.  

These are not considered as living organism as they do not possess the characters of a living cell like metabolism.

They are unable to do anything without a host cell that is it needs the machinery of the host cell to live like the replication machinery which is used by the virus to replicate inside the cell.

Thus, they are not considered living organisms and option D is the correct answer.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.