Across
- 4. of plants making food – Photosynthesis
- 5. that speeds reactions – Enzyme (moved here to balance counts)
- 7. that restores heart rhythm – Pacemaker
- 9. measured in joules – Energy
- 11. study of blood – Hematology
- 12. that regulates blood sugar – Insulin
- 13. produced when skin is exposed to sunlight – Vitamin D
Down
- 1. of electrical signal with fixed amplitude – Analog
- 2. separating chest and abdomen – Diaphragm
- 3. responsible for fight-or-flight – Adrenaline
- 4. that speeds reactions – Enzyme
- 6. used in cancer therapy – Gamma Rays
- 8. with zero electrical resistance at low temperatures – Superconductor
- 10. that fights pathogens – Antibody