D. Pollution has no advantages.
Main function of dna is to store all long term storage of information
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:
B. the wind tunnel must be run by highly skilled workers.
correct me po if imma wrong ^-^