WAEC - Biology (1995 - No. 36)
The graphs above show the results of experiments which investigated the effect of temperature and oxygen on the rate of uptake of certain ions labelled X and Y by a plant root. Use them to answer the question
Which of the temperature ranges will likely favour the plant best?
0 -10oC
15.-20oC
30- 40oC
45 - 50oC
above 50oC
Erläuterung
From the graph, the temperature range that will likely favour plant is 45ºC - 50ºC