Speciation . Group of answer choices

1. must begin with the geographic isolation of a small, frontier population
2. occurs at such a slow pace that no one has ever observed the emergence
3. of new species occurs only by the accumulation of small genetic changes over
4. vast expanses of time can involve changes to a single gene

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.

that is wrong, its not thymus.

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.