Fill in the Blanks Body parts - AnatomyOnline version Choose the best option by Jesús Alejandro Fuentes Osorio 1 skin hair melatonin The basic function of the is protect our bod y 2 nails hair eyes The can have different colors like brown , blue , or green . 3 eyes nose fingers This sense is linked to your memory and your can help you remember certain scents and trigger memories associated with the m 4 nose eye ear The human is capable of detecting sounds as low as 20 Hz and as high as 20 , 000 H z 5 feet hands mouth An interesting fact about is that they contain over 27 bones , making up around one - quarter of all the bones in the human bod y