What category of organisms can mate and produce fertile offspring

How is an environment able to support different varieties of organisms?

Grignard reactions are highly exothermic and are performed in ether solvent. there is a real risk of fire during this reaction. in the case that a fire should occur in your distillation apparatus, what is the best course of action? g

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?