Question

which of the following contain individuals that are pathogenic to humans:

- nonliving things

-single-cell eukaryotes

-prokaryotes

-bacteria

-multicellular eukaryotes

-archea

Answer 1

Ans . The following contain individuals that are pathogenic to humans :-

1) non living things

2) single-cell eukaryotes

3) Prokaryotes

4) bacteria

5) multicellular eukaryotes

Non living pathogens include viruses and prions.

Viruses can infect all kind of living cells, including bacteria, and almost all viruses are pathogenic.

Unicellular eukaryotic pathogens are mainly belongs to protozoa, fungi and algae. e.g. Entamoeba histolytica.

Despite the ubiquity and close association of Archea with humans, animals and plants, no pathogenic archea have been identified.