protists
Synonyms
Examples
A mammalian cell typically contains 40 to 100 stacks. citation Between four and eight cisternae are usually present in a stack; however, in some protists as many as sixty cisternae have been observed.
However, as a legacy of the older plant life scheme, some groups that were also treated as protozoans in the past still have duplicated classifications (see ambiregnal protists ).
Many protists and fungi alternate between sexual and asexual reproduction.
In lower termites, the endosymbiotic protists play a major role in the digestion of lignocellulosic materials that constitute a bulk of the termites' diet.
Exceptions are animals and some protists, who undergo meiosis immediately followed by fertilization.
Fertilisation in protists Fertilisation in protozoa There are three types of fertilisation processes in protozoa: Fertilization in protozoa and metazoan animals: cellular and molecular aspects.