99 points
in order to determine the shape of human muscle cells a scientist should
a)prepare a medium for making a culture of the cells
b) prepare a model of that type of cell
c) observe a sample of the cells with a light microscope
d)observe a sample of the cells with an electron microscope

answer:

c is the answer : )

explanation:

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.