Styles Use the information in the paragraph below and in Figure 2 to answer ques
ID: 271061 • Letter: S
Question
Styles Use the information in the paragraph below and in Figure 2 to answer questions 3 and4. Starting in the mid-1990s. larniks and colleagues noted an increase in the fecundity of nematode-infected female flies. They also found that many of the flies now contained a szmbiontic bacterium, Spicgpiasma whereas fles from prior years seldom, if ever, contained the bacterium. They hypothesized that the bacterium reduces the negative effects of the nematode. 40 Nematode-parasitized 30 Flies with bacteria Flies without bacteria 20 10 0 5 10 15 20 25 30 35 40 40 Unparasitized 30 E 20 10 0 5 10 15 20 25 30 35 40 Egg number per ovary Figure 2 Average number of eggs per ovary in female flies collected in Rochester. New York (2008) Nematode-infected flies (top) versus nematode-free flies (bottom). Question 3. About what percent of flies harbor the bacterium? Question 4. What pattern do you observe with respect to female fecundity in (a) flies with the bacterium and (b) flies without the bacterium?Explanation / Answer
Q3. Large percentage of flies harbour the bacterium
Q4a. Flies with the bacterium appear to have high fecundity.
b. Flies without bacterium appear to have less fecundity.