Alexander Von Humbolt described for the first time

Alexander Von humboldt describe for the first time:

The herbarium specimen, based on which, a new species is described for the first time, is called

Alexander von Humboldt gave the relationship between the species richness and its geographical area . Which of the following is the correct logarithmic equation for his findings ?

Alexander von Humboldt gave the relationship between the species richness and its geographical area . Which of the following is the correct logarithmic equation for his findings ?

Who described C_(4) pathway for the first time ?

Scientist who described chromosomes for the first time is………………………………………

Who described C_(4) pathway for the first time ?