The species concept works better when classifying asexual species

Phylogenetic species concept 

Phylogenetic species concept is when a member of irreducible group descended from a common ancestor and they have combination of certain trait. Also, this concept of species share a unique evolutionary history but focuses on their physiology, morphology and behaviour. However, Phylogenetic species concept works better when classifying asexual species.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

you can have just about every answer you can think of