En una población de estudiantes de la Universidad Z, la probabilidad de que uno de ellos (elegido al azar) tenga problemas cardiacos es de 0.3500. La probabilidad de que un estudiante con problemas cardiacos sea un fumador es de 0.8600. ¿Cuál es
la probabilidad de que el estudiante elegido al azar de entre la población sea un fumador y tenga problemas cardiacos? Nota:
Ser fumador es independiente de tener problemas cardiacos.
¿Cuál es la probabilidad de que el estudiante elegido al azar de entre la población sea
un fumador y tenga problemas cardiacos?

i believe it is c: genes for body color and wing size are inherited separately from each parent.

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.