Please answer fast ASAP I give brainliest

1)how many nucleotides can be observed in the image ?

2) why might nucleotides be know as the building blocks of DNA ?

3) what elements can be found in the structure of DNA if DNA is composed of nucleotides?

Please answer fast ASAP I give brainliest 1how many nucleotides can be observed in the image 2 why might nucleotides be know as the building blocks of DNA 3 wha class=