A scientist observes that some cells are growing faster than the other cells in a rat tissue culture. A week later, the scientist notices that the fast-growing cells have tripled in number compared to the
normal cells. This observation is a possible clue that the fast-growing cells -
A Have killed the slow-growing cells
B Were exposed to antibiotics
C Contain an unknown enzyme
D Have disruptions in their normal cell cycles

Azoologist is studying four very closely related feline species. she wishes to compare their gestation periods. an observational study is conducted where the zoologist observes the gestation period of 50 randomly selected felines in each species. a one-way anova test is run to test the hypothesis that the average gestation period is the same for each of the four species. a level of significance of 0.05 is used, and a p-value of 0.01 is calculated. based on this result, the conclusion that can be drawn is that: