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
Russia434
Pakistan61
Italy67
Ukraine120
Belarus61
Brazil121
Republic of Ireland49
Belgium42
India295
the United Kingdom168
Kazakhstan73
Australia42
Nigeria42
Poland19087
the United States191
Austria94
the Netherlands99
Switzerland48
Germany563
Canada38