Answer:
carbon and titanium, hope that helps
Explanation:
Question:
<em>What is Darwin’s theory of the origin of species?</em>
Answer:
<em>The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.</em>
Hope this helps!
2.) occasionally beneficial
3.) omission of information
4.) addition of information
5.) mistakes in copying
I believe the answer to this is substitution <span />