Question

State whether the following statements are true or false.
Bacteria living in the human digestive tract and producing vitamins used by the human are best described as parasitic organisms

• A. True
• B. False

Answer 1

The correct option is B False

A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. Protozoa are microscopic, one-celled organisms that can be free-living or parasitic in nature. Helminths are large, multicellular organisms that are generally visible to the naked eye in their adult stages. Ectoparasites can broadly include blood-sucking arthropods such as mosquitoes, ticks, fleas, lice etc (because they are dependent on a blood meal from a human host for their survival).

So the given statement is false.