Global warming/climate change
Answer:
The chromosomes inroduces carbon factors
Explanation:
The answer is D. You really have to think about this one :)) I hope you get it right
Answer:
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
Explanation: