Although protozoa are not animals they are thought to be the ancestors of animals. Most protozoa consist of a single cell.
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But only a few fossil evidences are available.
Animal like protists the protozoa. Protozoa gave rise to animals most are microscopic 3 300 m. All animal like protists are heterotrophs and they are able to move around in their environment in order to find food. Fossil study of protozoans.
Least some characteristics with the animal kingdom protists 1413 ziser lecture notes 2012 9 2 the animal like protists. A few are colonial protozoa share several animal like traits. Protists that are classified as animal like are called protozoans and they share some common traits with animals.
They are animal like because they are heterotrophs and are capable of moving. The protozoa most are unicellular. Cambrian period is about 550million years ago.
The fossil record indicates that all protists and animal hyla were present during the cambrian period. Lack cell wall most are motile heterotrophic nutrition. Flagellate subphylum mastigophora any of a group of protozoans mostly uninucleate organisms that possess at some time in the life cycle one to many f.
Animal like protists are commonly called protozoa singular protozoan. Animal like protists are unicellular and they are divided into four basic groups based on how they move and live.
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