Examlex
A ________ is formed by abrasion of rocks by windblown sand.
Micronucleus
One or more smaller nuclei found, along with the macronucleus, in ciliates. The micronucleus is involved in sexual reproduction. Compare with macronucleus.
Macronucleus
A large nucleus found, along with one or several micronuclei, in ciliates. The macronucleus regulates metabolism and growth. Compare with micronucleus.
Ciliates
A group of protozoans characterized by the presence of hair-like structures called cilia, used for movement and feeding.
Diplomonads
Small, mostly parasitic excavates with one or two nuclei, no functional mitochondria, and one to four flagella.
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