Question

which statements accurately describe biodiversity on earth? scientists have identified about 1.5 million species, but they estimate that species totals could be up to 11 million. insects far outnumber any other group of organisms, excluding bacteria. scientists have identified about 95% of bacteria species, but have not identified most species of vertebrates. vertebrate species, which includes humans, likely make up 1% of all species on earth. all groups have about the same estimated number of species, but different numbers of identified species.

Explanation:

1. Scientists have indeed identified around 1.5 million species and estimate a much larger total up to 11 million.
2. Insects are the most - numerous group of organisms excluding bacteria.
3. Scientists have not identified 95% of bacteria species; in fact, bacteria are still largely un - identified, and most vertebrate species have been identified.
4. Vertebrate species, including humans, are a small fraction, likely about 1% of all species on Earth.
5. All groups do not have about the same estimated number of species; some groups are much more diverse than others.

Answer:

Scientists have identified about 1.5 million species, but they estimate that species totals could be up to 11 million.
Insects far outnumber any other group of organisms, excluding bacteria.
Vertebrate species, which includes humans, likely make up 1% of all species on Earth.