A frog population is living in the lake near the campus. After a field survey, scientists reported that there are estimated 650 frogs in the lake area (which is 130 squared meter in size).
The population density of this frog population is .

A. 650 frogs
B. 5 frogs per squared kilometer
C. 5 frogs per squared meter
D. 13 frogs per squared meter
E. 130 frogs

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.