What are two basic differences between dna and rna?

The differences between DNA and RNA are.

* Sugar: DNA has deoxyriboses and RNA has riboses.

* DNA is mostly found in double strand, whereas aRN is mostly found in single strand.

There are other differences,

* Both have adenine, guanine and cytosine, but DNA has thymine and RNA possesses uracyl

* size, DNA is usually longer than RNA.

* DNA is found only in the nucleus, RNA is found in the nucleus and cytoplasm.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.