Annika has a friend named pedro how are similar are annikas and pedro dna

They are both Homo Sapiens, so we know that their amino acid sequence will be the same making the DNA of both individuals very similar. According to studies, our DNA's are 99,4% - 99,9% similar, having only a 0,1% - 0,6% variation between two human individuals.

Hope it helped,

BioTeacher101

allowed for the prediction of the properties of missing elements.

satellites are frequently used to make observations of the orbit on earth