Which is a pathophysiologic change that is consistent with Alzheimer disease?

The correct answer is - occurrence of  amyloid plaques and neurofibrillary.

Explanation:

Neural thread protein known as tau protein responsible for the stabilization microtubules, in patient of Alzheimer these proteins are chemically modified and tangles or twists into paired helical filaments called neurofibrilary tangles.

In specific region of of brain have strokes which is focal cerebral infarct, Abnormal cholinergic system is associated with this seizure disorder. Amyloid plaques are misfolded proteins aggregates that are present in the space between nerve spaces associated with Alzheimer disease.

Thus, the correct answer is :  occurrence of  amyloid plaques and neurofibrillary

layer 3 is younger than layer 6.

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.