According to current estimates in biological studies, the total number of plant and animal species that are known, described, and given scientific names on Earth is typically cited as falling between 1.7 to 1.8 million. This number is frequently updated as new species are discovered, but 1.7-1.8 million remains the standard range used in biology textbooks and studies.

• Biodiversity: This refers to the wide variety of life on Earth.

• Known Species: Despite many species being undiscovered, taxonomists have cataloged roughly 1.7 to 1.8 million of them.

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