Hey mamas rateme 1-10 ;)

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Which radioisotope is used to date fossils? a. oxygen-16 b. carbon-14 c. uranium-238 d. carbon-12

Which compounds are the brønsted-lowry bases in this equilibrium: hc2o4– + h2bo3– h3bo3 + c2o42– ? a. h2bo3– and h3bo3 b. hc2o4– and h3bo3 c. hc2o4– and c2o42– d. h2bo3– and c2o42– e. hc2o4– and h2bo3–

Karen has discovered a new organism in the amazon rainforest. it moves by itself, is a consumer, and its cells do not have a cell wall. in what kingdom would this newly discovered organism belong? a) amazon b) animalia c) fungi d) plantae