The Incredible Diversity of Living Organisms
How many known species of plants and animals are there on Earth?
A. Around 8.7 million
B. Approximately 1.2 million
C. Over 5 million
D. More than 10 million
Answer:
A. Around 8.7 million
There are approximately 8.7 million known species of plants and animals on Earth. This number is constantly changing as scientists continue to discover and classify new species.