May/June 2026 Paper 23

2026 · 40 questions · 40 parts · 40 marks

0/40 marks
0Correct0Partial0Wrong40Unattempted
Filters0 active

Questions

Select a part to jump to its question

Finish set
Q1
1
–/1 mk
Q2
2
–/1 mk
Q3
3
–/1 mk
Q4
4
–/1 mk
Q5
5
–/1 mk
Q6
6
–/1 mk
Q7
7
–/1 mk
Q8
8
–/1 mk
Q9
9
–/1 mk
Q10
10
–/1 mk
Q11
11
–/1 mk
Q12
12
–/1 mk
Q13
13
–/1 mk
Q14
14
–/1 mk
Q15
15
–/1 mk
Q16
16
–/1 mk
Q17
17
–/1 mk
Q18
18
–/1 mk
Q19
19
–/1 mk
Q20
20
–/1 mk
Q21
21
–/1 mk
Q22
22
–/1 mk
Q23
23
–/1 mk
Q24
24
–/1 mk
Q25
25
–/1 mk
Q26
26
–/1 mk
Q27
27
–/1 mk
Q28
28
–/1 mk
Q29
29
–/1 mk
Q30
30
–/1 mk
Q31
31
–/1 mk
Q32
32
–/1 mk
Q33
33
–/1 mk
Q34
34
–/1 mk
Q35
35
–/1 mk
Q36
36
–/1 mk
Q37
37
–/1 mk
Q38
38
–/1 mk
Q39
39
–/1 mk
Q40
40
–/1 mk
37Populations CommunitiesMedium1 mark
The graph shows the population size of bacteria grown in a closed container.
Graph of population size against time divided by dashed lines into four phases: growth phase W, low and flat; growth phase X, rising steeply; growth phase Y, level at the top; and growth phase Z, falling to zero
Which row explains what is happening at growth phases X and Y?
growth phase Xgrowth phase Y
Apopulation growth is not limited by amount of nutrientspopulation growth is limited by amount of nutrients
Bpopulation growth is not limited by amount of nutrientspopulation growth is not limited by amount of nutrients
Cpopulation growth is limited by amount of nutrientspopulation growth is limited by amount of nutrients
Dpopulation growth is limited by amount of nutrientspopulation growth is not limited by amount of nutrients