The bacteria species escherichia is actually beneficial to humans. the bacteria place in important role in which human body function

Escherichia coli (E. coli) bacteria normally live in the intestines of people and animals. Most E. coli are harmless and actually are an important part of a healthy human intestinal tract.

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.