Bioluminescence

123456789
Across
  1. 2. Microscopic light emitters.
  2. 4. Energy emitted by living organisms.
  3. 6. A faint, wavering, flickering light.
  4. 7. Compound that produces light in organisms.
  5. 8. A specialized cell that produces light.
Down
  1. 1. Microscopic marine organisms that glow in the dark.
  2. 3. Deep-sea fish with a glowing lure.
  3. 5. Nighttime insect with a glowing abdomen.
  4. 9. Element required for many bioluminescence reactions.