What are the shapes of the receptive fields of retinal ganglion cells, LGN cells, and V1 simple cell

Which of the following is not a way in which a vascular plant's xylem and phloem are similar?

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy? 

One of the reasons that stars are so large is because