How do I answer this question the table below shows the effect of predation in a laboratory experiment using Paramecium aurelia and yeast cells, cultured in a solution containing sugar.
Time (hour)
2
4
6
8
10
12
14
16
Paramecium
20
90
120
95
50
20
40
60
Yeast per 15cm cubic
60
140
100
65
25
50
80
100
a) Using the same axes plot, graphs to show growth curves of Paramecium aurelia and yeast.
b)At what time was the population of Paramecium aurelia and yeast the same.
c)Explain the relationship between Paramecium aurelia and yeast.
d)What is the approximate time lag between the maximum population of yeast and maximum population of paramecium?
Suggest a reason for this lag?
e)Account for the shape of the graph of Paramecium aurelia between:-
(i) 2 and 6 hours.
(ii) 6 and 12 hours.
f)Suggest what would happen to the population of paramecium if the temperature was lowered to 0 degrees celsius.
Give reasons.