Why is a raven like a writing desk?

What is one way that the author makes a distinction between the first transcontinental railroad and the first transcontinental passenger flights in 1936

Plz ! i genetic mutation occurs in a rabbits muscle cell this genetic mutation will be passed on to, a. the existing cells in the rabbits body. b. the cells that are next to the mutant muscle cell. c. cells that are produced when the mutant cell divides. d. the cells of the rabbits offspring.

Use the drop-down menu to choose the best verb form to complete each sentence. if he a warmer jacket, he would not have gotten frostbite. i wish that those snakes fake. if they to go to the party, they would need a ride.