What is common about Trypanosoma. Noctiluca, Monocystis and Giardia?

What is common about Trypanosoma. Noctiluca, Monocystis and Giardia?
  1. these are all parasites
  2. these are all unicellular protists
  3. they have flagella
  4. they produce spores

Solution

Trypanosoma gambiense is the single celled, parasitic zoofiagellate causing trypanosomiasis or sleeping sickness. Giardia is a parasitic flagellate occurring in the intestine of man and other animals and causes giardiasis or diarrhoea (i.e., very loose and frequent stool containing large quantity of fat). Noctiluca is a marine, colourless dinoflagellate. It is a voracious predator and has a long, motile tentacle, near the base of which, its single short flagellum emerges. Monocystis is a microscopic, unicellular endoparasitic protozoan found in the coelom and seminal vesicles of earthworm. As it is an endoparasite, it does not possess any special structure for locomotion.

Asked in: NEET 2006

Practice more Biological Classification questions on Aicharya