Why are viruses called obligate intracellular parasites?
a. They must use a host cell's ribosomes to synthesize proteins.
b. They must use a host cell's nucleotides for transcription and replication.
c. They must use a host cell's amino acids to synthesize proteins.
d. They must use a host cell's metabolic enzymes and pathways to obtain energy.
e. All of the above.

Respuesta :

Answer:

they servive only in living cells.

Explanation:

the virus are connecting link between living and non-living. they are unable to perform life process outside the living cells. outside the living cells, the viruses behave as simple chemical so they are called as obligate intracellular parasite.