Answer:
DNA is a Deoxyribose nucleic acid and our Dna strand is double helix
Explanation:
I kow this because if you close you see two strands
B and E, since not everyone believes in supernatural beings or the affects of astrological signs
The third option "Rhyolitic" would be your answer.
The three mechanisms which regulate the heart are endocrine, cardiovascular and Sinoatrial nodes.
The endocrine system consists of the glands and hormones of the human body. The cardiovascular system is the organ system which is responsible for the circulation of the blood around the body and the oxygenation of the body's tissues. The sinoatrial node (SA node) generates the electrical impulses and is considered the natural pacemaker of the heart.
