What are 3 things you can’t control during online class?

Chatting with frnds that's the only thing

lol

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

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".