Examine the image that shows the folds in the lining of the small intestine. Which of the statements best describes the interaction between the small intestine and another organ based on the model shown here?

a

explanation:

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".

the correct answer is b

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.