Q8 · Practice questionSimple familiar1 mark
QUESTION 8
A population initially contains 400 lizards. During one month there are 55 births, 32 deaths, 18 immigrants and 21 emigrants. Its net change is
(A)
−20 lizards
(B)
+62 lizards
(C)
+23 lizards
(D)
+20 lizards
WORKED SOLUTION
1 markAnswer D
Answer
D
Working
. The final population is 420, but the question asks for the change.
Marking criteria
- Select D. [1 mark]
Practice question aligned to the current QCAA syllabus; review the worked solution and marking criteria.
View the QCAA syllabus