Which of the Following Is True About the Diversity of Life

Multiple Choice

Which of the following is true about the diversity of life?

A) Biologists have identified and named about 5 million species of organisms.
B) At least 500,000 fungi have been identified.
C) Researchers identify thousands of additional species each year.
D) Estimates of the total number of species on Earth range from 8-10 million.
E) More vertebrate species have been identified than plant species.