6. Placenta previa is a medical condition that occur sin some pregnant women. Women with this condition are often placed on bed rest, which
prohibits them from any strenuous activity that may cause the blood
vessels in the placenta to rupture. If not diagnosed, placenta previa can
be a very dangerous condition because the placenta is *

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.