Observe the layers of the graph below.
layer 1: a, c
layer 2: e
layer 3: a, d,f
layer 4: b
layer 5: f, c
layer 6: d, b

what is most likely an index fossil?
a.) a
b.) b
c.) d
d.) e

It is called a neutralization reaction

Answer is (d)a brainliest would be appreciated

Answer: temperature? i hope this and have a wonderful

Atp, shorthand for adenosine triphosphate, is the standard molecule for cellular enger in the human body. all motion and metabolic  processes  within the body begins with energy that is released from  atp, as its phosphate bonds are broken in cells through a  process  called hydrolysis.