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.
6. Based on Figure 2, the average number of eggs produced per female per day was how many times as great at 35°C as it was at 20°C ?
Your Answer is
Correct Answer is G
Explanation
In Figure 2, 35°C corresponds to 2, 20°C corresponds to 4, 2/4=1/2, choose G