Well considering birds follow humane rules, their selection and environment around them being thriving could effect their songs in a positive way. While a bird with a low selection of environmental stuff around them would effect their songs in a bad way giving off a more down manner.
Because it contains DNA, the nucleus can be considered to be the cell's ... It is like a conveyor belt that helps to move substances through the cell factory. ... These (above) go through the chloroplast.
They cannot live without water
C. <span>deoxyribose in DNA and ribose in RNA. </span>
