Some dioecious species have the xy genotype for male and xx for female. After double fertilization, what would be the genotypes of the embryos and endosperm nuclei?.

answer; ///i believe that the correct answer is (a) specialized cells)

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.

for a different answer set the answer would be because the oxygen in the water had depleted (apex)