Aleaf trapped between
two slides. under each slide is a piece of cobalt chloride
paper. this paper turns pink when water touches it.
explain why the paper on the bottom of the leaf turns
pink before the paper on the top of the leaf.

The main role of dna in the  cell is the long-term storage of information. it is often compared to a blueprint, since it contains the instructions to construct other components of the  cell, such as  proteins  and rna molecules.the main function of rna is to carry information of amino acid sequence from the genes to where  proteins  are assembled on  ribosomes  in the  cytoplasm. mark brainliest, my work is good.

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what are the options