Here are seven amazing animals that do not require oxygen to survive.

Location of reactions in anaerobic respiration ... Contains enzymes for the reactions in aerobic respiration (in animals, plants and yeast).

A 'biological universe' exists in a gram of soil. Find out how the soil biota within this tiny universe transform energy, create and modify their habitat, influence soil health, and aid in the ...

Find your added subjects in My Bitesize. Try this quiz based on GCSE Combined Science past papers. Choose the topic you would like to revise and answer the questions. GCSE Combined Science: exam ...