A student sits on her foot for 15 minutes and when she stands up she does not have any feeling in her foot. This is because she has cut off the blood supply to her foot by sitting on it. This directly affects which body system? A
Digestive
B
Immune
C
Nervous
D
Circulatory
.

if you know your abc's you should be able to get your answer or just use google

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.