1. 6 and 9
<span>2. 3, 7, and 8 </span>
<span>3. 1,2,4,and 5</span>
In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".
Answer:
i think that one is all of the above
Explanation:
correct me if i a wrong but all of these are bad for the evironment
i am only is 7th grade so, i may be wrong
Answer:
I guess membrane is answer
Gene regulation is the process of turning genes on and off. It is accomplished by a variety of mechanisms including chemically modifying genes and using regulatory proteins to turn genes on or off.
