MOOK: Chapter 47 - SELIG HECHT AND ADAPTION TO THE DARK

What was Selig Hecht's profression?

• Psychologist

• Physiologist

• Psychiatrist

All creatures have both rods and cones.

• True

• False

A lack of what Vitamin causes Night Blindness?

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D

The eye's retina contains what two light sensitive cells?

• Rods

• Pyramids

• Cylinders

• Cones

What natural chemical change do pigments undergo when exposed to light?

• Restoration

• Bleaching

• Staining

• Disintegration

Biochemists can extract what chemical from rods and cones?

• Protiens

• Keratin

• Vitamin A

• Pigments

Recall the effects of pigment on light sensitivity. What eye color is the most sensitive to light?

• Brown
• Blue
• Green
• Hazel