The twisted shape of DNA is called Double Helix
<span> The main source of energy for humans is the food we eat.</span>
A) Cytoplasm because it contains a jelly-fluid called Cytoplasm... Cytoplasm fills most of the space inside the cell...
Because cells are 2nd in order from simplest to most complex. Organelle,cells,tissues,organs,organ systems,organisms, populations, communities, and biosphere.