What is the definition of a species?

Scientists have come up with many different definitions of a species over the years; reproductive isolation being key to all concepts. However the most widely accepted is the biological species concept: 'Species are groups of interbreeding populations with similar characteristics that can produce fertile offspring.'

AG

Related Biology A Level answers

All answers ▸

Describe and explain what happens to enzyme activity as the pH is decreased below the optimum pH.


List the structures of the nephron in kidneys and which parts of the nephron differ in permeability to water?


What is the difference between aerobic and anaerobic respiration?


What is meant by the phrase saltatory conduction?