What do mitochondrial and thylakoid membranes have in common?

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 diabetes mellitus;

answer///(c) the maximum number of organisms an environment can support for a long time; i believe this is correct, plz check luck;