Its d if not im so very sorry
Hello!
I believe the correct answer would be: Nonheme Iron.
I really hope my answer helped you! :)
Answer:
It would be A
Explanation:
I took the same test. And got it right.
Fossil fuels pollute the environment which harms the earth creating green house gases that cause global warming.
Answer:
A mutation
<em>What can cause changes in a DNA sequence?</em>
A mutation is a change in the DNA sequence. There are several different methods by which mutation happens. Of course, chemically produced mutations receive the most media attention. There are a wide range of substances that can cause mutations, usually by attaching to the DNA and causing it to break, requiring an incomplete repair, or by preventing DNA replication, forcing the replication machinery to repeat the DNA poorly.
However, other factors, such as exposure to radiation or light, can also cause DNA mutations. In reality, UV and X ray light are known to cause mutations by changing the DNA's base composition or causing DNA breaks.
Mutations are also spontaneously caused by DNA replication. Although it occurs extremely infrequently, the replication complex does occasionally make mistakes and insert the incorrect DNA base, which leads to a significant amount of mutations over the course of generations.
Thank you,
Eddie
