bio prac

Question 1

why is only one reading being taken/experiment only carried out once considered a source of error?

Answer 1

explanation: results are not reliable
improvement: carry out at least 3 replicates/repeat experiment another 2 more times

Question 2

what is ‘human perception of color is subjective’ considered a source of error?

Answer 2

explanation: difficulty in determining the colour change/end point colour
improvement: determine colour with colorimeter/with colour charts

Question 3

why is specimens (name) may not be obtained from the same source considered a source of error?

Answer 3

water potential/