You could be depressed from a lot of different things, from losing your job to someone passing away
Answer:
In double-stranded DNA, the molecular double-helix shape is formed by two linear sugar-phosphate backbones that run opposite each other and twist together in a helical shape. The sugar-phosphate backbone is negatively charged and hydrophilic, which allows the DNA backbone to form bonds with water.
Things of the same species have similar morphology and can INTERBREED
What holds the two strands of DNA molecules to each other. Hydrogen Bonds
Answer:
Lateral meristematic tissue to grow wider and phloem and xylem for producing vascular tissue