Question

how do ecologists estimate the total number of species present in the world ?​

Answer 1

☺ Good evening ☺

According to an estimate by researchers, it is about seven millions. The total number of species present in the world is calculated by ecologists by statistical comparison between a species richness of a well-studied group of insects of temperate and tropical regions

Answer 2

$\huge\bf\underline{\red{Y}\green{o}\orange{u} \pink{r}\:\red{a}\purple{n}\blue{s}\orange{w}\red{e} \purple{r}}$

According to an estimate by researchers, it is about seven millions. The total number of species present in the world is calculated by ecologists by statistical comparison between a species richness of a well studied group of insects of temperate and tropical regions.

hσpє thís much hєlps u❣️