There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
The Many Faces of Life (Part 1)
Life Cycle of Lobster
A Child with a Cochlear Implant
Gossip and ridicule increase the status insecurity of this time of life.