Answer:
Sample 1
Explanation:
Dna contains carbon, hydrogen, oxygen, nitrogen, and phosphorus. These make up the sugar-phosphate backbone of the DNA also known as the sides of the ladder.
Answer:
D. Traveling to the heart
Explanation:
The arteries carry oxygen and nutrients away from your heart, to your body's tissues. The veins take deoxygenated blood from the tissues and back to the heart.
Answer: false
Explanation: because it increaded in a neagitive direction.
...Chloroplasts. These allow cells to perform photosynthesis.
Answer:
deoxyribose, uracil, and phosphate
Explanation: