What age does a tree obtain its bark

One of the purposes of transcription is to produce a sequence of bases that

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an