You can see the introduction to this series here. In this post we examine the evidence that mitochondria and chloroplasts are the descendants of free-living bacteria that entered into mutualistic relationships with eukaryotic host cells.
For the town of the same name in New South Wales, Australia, see Seaham, New South Wales. Seaham, formerly Seaham Harbour, is a small town in County Durham, situated 6 miles (9.7 km) south of Sunderland and 13 miles (21 km) east of Durham. It has a small parish church, St Mary the Virgin, with a late 7th century Anglo Saxon nave resembling the church at Escomb in many respects.
Cemetery notes and/or description: Waltham Abbey is a market town in the south west of the county of Essex, in the East of England region. It is about 24 km north of London on the Greenwich Meridian. It takes its name from Waltham Abbey, which was prominent in the early history of the town.