Neither parent has the gene that causes longer ears. identify one process that might cause the appearence of this new trait in the offspring.

Ineed to know why d is the correct answer asap

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

Suppose you use three different scale to weigh a bag of oranges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of oranges is 2.153 lb. which of the following best decribes these results?