(a)[2]
State the dietary importance of iron and vitamin D.
(b)[3]
Describe how the farmer could use selective breeding to produce larger chickens.
(c(i))[1]
Define the term mutation.
(c(ii))[2]
State two factors that increase the chance of mutation.
Biology 0610 · IGCSE · Selection
Selection — practice question
Eggs may form part of a balanced diet.