Sylvatic plague is a disease spread by fleas. this disease can reduce a population of prairie dogs by 90 percent. if prairie dogs are dusted regularly with pesticides, what is most likely to happen to the prairie dog population? A. It will remain about the same.
B. It will decrease to zero.
C. It will increase slightly.
D. It will increase exponentially.
(Please help asap)

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.