Passage I
The whitefly Bemisia argentifolii is an insect that has 3 distinct life stages: egg, nymph ( juvenile), and adult. A study examined the effects of external temperature on the duration of each of the 3 life stages of B. argentifolii and on egg production by adult female B. argentifolii. Figure 1 shows, for each of 5 external temperatures, the average duration of each life stage. Figure 2 shows, for each of the 5 temperatures, the average number of eggs produced per female per day during the first 7 days of adult life.
1. According to Figure 1, for how many of the temperatures tested was the average duration of the egg stage longer than 1 week?
Your Answer is
Correct Answer is A
Explanation
According to Figure 1, only egg stage vertical axis higher than 7 is 20°C, choose A