What is the function of the epiglottis?

In what for do plants utilize nitrogen? why do they need nitrogen?

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.