Which of these is likely to result in the most competition? a. organisms that live in different ecosystems b. organisms that use the same resource c. organisms that live in the same area d. organisms that are classified in the same phylum

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

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.