(a(i))[1]
Predict the volume of apple juice obtained when pectinase solution has a concentration of 20%.
(a(ii))[2]
Calculate the percentage increase in the volume of apple juice obtained when the concentration of pectinase solution rose from 0% to 10%.
(b)[2]
Draw two lines to form two correct statements about selective breeding.
(c)[2]
State the numbers of the two statements about natural selection that are incorrect.
(d)[1]
State the term for an inherited characteristic that helps an organism survive and reproduce in its environment.