Answer:
True and The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants
Nervous system is the body system that is involved in coordinating and controlling body movements
Ethics are principles that govern a person’s behavior or the conducting of an activity
Answer:
deoxyribose
Explanation:
A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.
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A chromosome is a Deoxyribonucleic acid molecule with part or all of the genetic material of an organism.