Which of the following is the smallest?
bacteria
viruses
White blood cells
protozoa
Viruses are by far the smallest, their whole "body" is a DNA or RNA code packed in a protein coat. Unlike the rest of the given, they are not living cells.
reach: rather globalbacteriabiologymedicinemicrobiologynature
Answers by country
bacteria
viruses
White blood cells
protozoa
answers
Russia437
Pakistan61
Italy67
Ukraine121
Belarus61
Brazil125
Republic of Ireland49
Belgium42
India295
the United Kingdom169
Kazakhstan75
Australia42
Nigeria42
Poland19114
the United States196
the Netherlands101
Austria94
Switzerland48
Canada38
Germany567