figerprinting+hw+JH

11. C 12. A 13. A 14. C 15. D 16. to take the ridge count an imaginary line is drawn from the center of the core to the edge of the delta 17. the marks left by impression of your fingers 18. A special layer on the skin grows faster than the dermis and causes ridges to settle down in different directions. 19. Yes it is possible to erase your finger prints with the acid in pineapples but it does stay for ever cause they grow back 20. ninhydrin - reacts with amino acids found in sweat cyanoacrylate - reacts with amino acids silver nitrates - chloride from salt in perspiration on the print combines with silver nitrates to form silver chloride iodine fuming - iodine combine with carbohydrates in latent print.