Take India for example.... people use the bathroom and bathe in rivers!
Now lets say we look at the US our pollution comes from factories, trash that people dont throw away, fertilizers and many more... but the difference is, that in developed countries like the US our water is filtered.... And in India water is not safe to drink
There is approx 4.7-5.5 liters of blood in his or her vascular system.
Animal cells contain dna enclosed in the nucleus
Eukaryotic cell’s have a nucleus and prokaryotes don’t