Mass number = protons + neutrons
If you have the # of protons and the mass #, subtract the number of protons from the mass number to get the number of neutrons.
If you have the number of neutrons and the mass number, subtract the number of neutrons from the mass number to get the number of protons.
I'm sure that the answer is B
The sentence which is true or a fact about the virus is the sentence in letter B. Viruses can reproduce only within other cells. <span>Viruses are intracellular obligate parasites they can not replicate or express the genes with out living host. </span>
<span>viruses are acellular so they have to rely on host cellular machinery for reproduction. </span>
<span>viruses doesnot contain any enzymes for reproduction</span>
Answer: because of the pandimic
it startExplanation: coronvires is the probelm over 4 years it started in 2019 to 2022 it even more year well never know.
