parasitic adaptation in protozoa
Answers
Protozoan parasite deceive the host immune defence because most of their growth takes place inside a particular host cell. Protozoa when exposed to very severe conditions at different stages of their life cycle,they adjust to these harsh environmental conditions by encysting that is by the formation of cyst which helps protozoa to withstand the severe conditions. It has also adapted comparatively some subcellular features that are membranes and organelles which also helps them to withstand the severe conditions. Most of the organisms are microscopic in nature whereas few of them grow which will be visible to our naked eye. Protozoans like eukaryotes displays all the features that are similar to higher metazoans. Hence cyst formation and subcellular features are the parasitic adaptations of protozoans.
Solution:
The parasitic protozoans live in a fairly constant environment.
As there is no or less fluctuation of temperature inside the body of the host, hence there is not the risk of desiccation.
Food is also in constant supply.
They respond to the adverse environmental conditions through the process of encysting.