Plz I'm in a rush Melanocytes are involved in what two functions of the integumentary system?

(A)protection and the excretion of waste
(B)the sensation of temperature and the excretion of waste
(C)protection and vitamin generation
(D)the sensation of temperature and vitamin generation

The answer is C

Explanation: protection and vitamin generation

protection in the form of melanin to absorb UV light

vitamin generation in the synthesis of vitamin D from cholesterol

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

the correct option is option d