There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
Did you know?
The FDA recognizes 118 routes of administration.
Earth Affects People; People Change Earth
Despite the globe’s vast social change, people all over the world continue to make race a ...
Nonmetal Oxides and Their Properties
Observed change in surface temperature from 1901 to 2012
Climate change
For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ...