Protozoans are classified based on the way that they move. Many Protozoans have advanced evolved Cilia (hair like fibers) or Flagella(a big tail) which help them move. Where others, such as, the amoeba use a pseudopodia to move around by stretching its cytoplasm âpullingâ itself forward to its next destination.
1 The first full-length episode of Oobi aired on April 7, 2003. Moose and Zee, Noggin's former hosts, were introduced on this same day.  Josh Selig, the creator of Oobi, was inspired to create the show after watching puppeteers in Poland perform with their bare hands.
This confusion arose because tantalum and niobium are similar metals, are always found together and are very difficult to isolate. Niobium was rediscovered and renamed by Heinrich Rose in 1844 when he produced two new acids, niobic acid and pelopic acid, from samples of columbite and tantalite.