A population of turtles is found where dark shells are completely recessive to light shells . In your survey, you captured both dark-shelled turtles (452) and light-shelled turtles (478). Suppose in this same population of turtles, a volcano erupts, spewing lava that upon cooling turns the soil surface dark and sooty. Thankfully, no turtles were harmed during the eruption. However, because of the change in soil color, light-shelled turtles are easier to see and therefore more likely to be eaten by predators. 80% of dark-shelled turtles survive predation, while only 20% of light turtles survive predation.
a) 524
b) 532
c)542
d) 552