Who developed a system of classifying organisms by genus and species
a)darwin
b)linnaeus
c)watson
d)mendel

p. s.- this is science not chemistry

Explanation:   b) Linnaeus

Swedish naturalist and explorer Carolus Linnaeus was the first to frame principles for defining natural genera and species of organisms and to create a uniform system for naming them.

The classification will come to the genus (plural genera) and species. These are the names that are most commonly used to describe an organism. One outstanding feature of the Linnean classification system is that two names are generally sufficient to differentiate from one organism to the next. An example within the primate family is the genus Homo for all human species .

the answer is   c.) 1575 j.

explanation:

fe 55.85 g/mol and h2o 18.02 g/mol.