If john's eeg reveals abnormal waves caused by brain malfunctions, he may be suffering from

By studying theta and delta wave frequencies in an EEG, the brain can be diagnosed. Malfunction to a region of the brain can be revealed by focal slowing of the EEG frequencies that can be attributed to tumors, stroke, and hemorrhage. General slowing reveal  general brain malfunction such as neurodegenerative disorders like encephalopathy.

i think the answer would be d

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.