
Rhythmic contraction and relaxation of heart is called <u>The</u><u> </u><u>Cardiac</u><u> </u><u>Cycle</u> .
Answer:
D
Explanation:
The functions of nucleic acids(DNA AND RNA) have to do with the storage and expression of genetic information. DNA encodes the information of the cell necessary to make proteins while the RNA participate in protein synthesis.
Decreased birthrate can cause a slowed birth rate.
Protest can be found during the early 1900s, like Picasso's Guernica .