Corn has small, colorless, odorless, lightweight flowers without petals. what is the significance of these flowers in the pollination process of the corn plant?

Moving down the ramp from 6 meters to

Crossing over is a method of (blank)?

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.