Refer to the Figure

question 3

Multiple Choice

Refer to the figure.
This figure presents data from a laboratory experiment using the nematode worm Caenorhabditis elegans and its lethal bacterial pathogen Serratia marcescens. Which of the following is not a reasonable inference from this figure?

• A) When the pathogen is present in the environment, selection favors the production of more genetically variable offspring.
• B) Selection for resistance to pathogens may counterbalance the cost of males in explaining why sexual reproduction is so widespread among organisms.
• C) There is genetically based variation in C. elegans populations for outcrossing frequency.
• D) In wild populations of C. elegans, outcrossing rates likely tend to be between around 70-90%.

---

Definitions:

Cholelithiasis

Stones in the gallbladder.

Colitis

Inflammation of the inner lining of the colon, often causing discomfort and diarrhoea.

Incontinent

Unable to control the bladder or bowel.

Anus

The opening at the end of the digestive tract through which feces leave the body.