Write two main characteristic features of protozoa citing two examples each.
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1. They do not have cell wall; some however, possess a flexible layer, a pellicle, or a rigid shell of inorganic materials outside the cell membrane.
2. They reproduce primarily by asexual means, although in some groups sexual modes also occur.
Examples of protozoa: sarcodina and parasitic protozoans.
2. They reproduce primarily by asexual means, although in some groups sexual modes also occur.
Examples of protozoa: sarcodina and parasitic protozoans.
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Answer:
it is used to make vaccine
for ex Panicillium it to make first vaccine in 1792
by Alexander flaming
it is used to wake water fresh
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