How many species of living things have been classified?

Answer 1

Only a rough answer to this question is possible and more are being described every day. Not all authorities agree about how many species have been described. Also, some that had been described as separate species now are being seen as only one species, and some species were accidentally described more than once under different names ("synonyms") so that some species are being crossed off the list.

Notice also that the word "organisms" includes plants, fungi and bacteria as well as animals.

The total number of species described so far is nearly 2 000 000. Of these over 300 000 are species of plants or similar organisms. Roughly 1 400 000 are animals (nearly all of them are species without backbones, and most of those described so far are insects.)

That leaves roughly 300 000 described microscopic species of organisms, but in many such cases it is very hard to be sure exactly what is meant by, or should be meant by, the idea of a species.

Answer 2

There are an estimated 3-30 million species of animals in the world. There are an estimated 1.2 million species of plants in the world.

Answer 3

i got this from my science book so i hope this is it, the answer is 1.7 million organisms so far!!!! ;}

Answer 4

twenty-five million

Answer 5

1.5 million