Question 21
The graph shows the growth of fish and algae populations in a pond,
5,000
Algae population
4,000
3,000
2,000
1,000
Fish population
Number of Species
0
1
2
3
Time (weeks)
4
X
5
Which of the following is true?
Oa The growth of the algae population is nonlinear because it grows by a variable amount each week.
Ob The growth of the algae population is linear because it grows by a variable amount each week.
The growth of the fish population is nonlinear because it grows by a variable amount each week.
Od The growth of the fish population is linear because it grows by a variable amount each week.