21.6: Chapter 6
( \newcommand{\kernel}{\mathrm{null}\,}\)
Multiple Choice
1. b
3. c
5. c
7. a
9. d
11. d
13. b
15. b
17. b
19. a
21. c
23. d
Fill in the Blank
1. wavelength
3. retinal ganglion cells
5. retinotopic