Cytosine<span> can form three </span>hydrogen bonds<span> with guanine.</span>
The axial skeleton consists of the skull, rib cage and vertebral column but her it looks like the appendicular skeleton
Answer:
Humans have breached this cycle by digging up fossil fuels and burning them, leading to carbon dioxide building up in the atmosphere faster than natural systems can soak it up. This has led to a net increase in greenhouse gases in the atmosphere, causing the planet to heat up.
Explanation:
