Question

explain protozoan in details

Answer 1

Protozoans are single cells micro organisms of a group of phyla of the kingdom protista such as sporozoan, amoeba, ciliate and more.

OR

protozoans are unicellular, animal like organisms.they are the link between algae and small aquatic organisms.they reproduce by binary fission.example:euglena and amoeba

algae are simple,plantlike organisms.all of them have chlorophyll and can photosynthesise. they can reproduce asexually as well as sexually.example:cyanobacteria and sargassum

bacteria are unicellular but sometimes cling together to form colonies. they are the simplest of organisms and are believed to be the first living beings on earth.example: bacillius anthracus and lactobacilli

fungi are a group of plantlike organisms which lack chlorophyll and most of them are saprophytes while some are parasites. example:yeast and mushroon

Answer 2

• All protozoans are heterotrophs and live as predators or parasites.
• They are believed to be primitive relatives of animals.
• There are four major groups of protozoans:

1. Amoeboid Protozoans
2. Flagellated Protozoans
3. Ciliated Protozoans
4. Sporozons

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